Home / 906,222,039.72-1,250,518,809.60-509,668,415.34

Finding the Fourth Proportional to 906,222,039.72, 1,250,518,809.60 and 509,668,415.34

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Solution

The fourth proportional to 906,222,039.72, 1,250,518,809.60 and 509,668,415.34 is: 703,304,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,222,039.72 : 1,250,518,809.60 = 509,668,415.34 : x
  2. Step 2: Convert to fraction form
    906,222,039.72/1,250,518,809.60 = 509,668,415.34/x
  3. Step 3: Cross multiply
    906,222,039.72x = 1,250,518,809.60 × 509,668,415.34
  4. Step 4: Simplify right side
    906,222,039.72x = 637,349,940,041,695,104
  5. Step 5: Solve for x
    x = 637,349,940,041,695,104/906,222,039.72
  6. Step 6: Final answer
    x = 703,304,391.32

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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.