Home / 712,407,134,105.50-983,122,478,558.75-387,246,425,918.43

Finding the Fourth Proportional to 712,407,134,105.50, 983,122,478,558.75 and 387,246,425,918.43

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Solution

The fourth proportional to 712,407,134,105.50, 983,122,478,558.75 and 387,246,425,918.43 is: 534,400,412,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,407,134,105.50 : 983,122,478,558.75 = 387,246,425,918.43 : x
  2. Step 2: Convert to fraction form
    712,407,134,105.50/983,122,478,558.75 = 387,246,425,918.43/x
  3. Step 3: Cross multiply
    712,407,134,105.50x = 983,122,478,558.75 × 387,246,425,918.43
  4. Step 4: Simplify right side
    712,407,134,105.50x = 380,710,666,061,944,279,007,232
  5. Step 5: Solve for x
    x = 380,710,666,061,944,279,007,232/712,407,134,105.50
  6. Step 6: Final answer
    x = 534,400,412,118.23

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.