Home / 712,407,134,105.99-983,122,478,559.41-387,246,425,918.93

Finding the Fourth Proportional to 712,407,134,105.99, 983,122,478,559.41 and 387,246,425,918.93

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Solution

The fourth proportional to 712,407,134,105.99, 983,122,478,559.41 and 387,246,425,918.93 is: 534,400,412,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,407,134,105.99 : 983,122,478,559.41 = 387,246,425,918.93 : x
  2. Step 2: Convert to fraction form
    712,407,134,105.99/983,122,478,559.41 = 387,246,425,918.93/x
  3. Step 3: Cross multiply
    712,407,134,105.99x = 983,122,478,559.41 × 387,246,425,918.93
  4. Step 4: Simplify right side
    712,407,134,105.99x = 380,710,666,062,691,401,990,144
  5. Step 5: Solve for x
    x = 380,710,666,062,691,401,990,144/712,407,134,105.99
  6. Step 6: Final answer
    x = 534,400,412,118.91

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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.