Home / 492,276,565.48-679,550,836.08-306,729,255.28

Finding the Fourth Proportional to 492,276,565.48, 679,550,836.08 and 306,729,255.28

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Solution

The fourth proportional to 492,276,565.48, 679,550,836.08 and 306,729,255.28 is: 423,416,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,565.48 : 679,550,836.08 = 306,729,255.28 : x
  2. Step 2: Convert to fraction form
    492,276,565.48/679,550,836.08 = 306,729,255.28/x
  3. Step 3: Cross multiply
    492,276,565.48x = 679,550,836.08 × 306,729,255.28
  4. Step 4: Simplify right side
    492,276,565.48x = 208,438,121,875,719,744
  5. Step 5: Solve for x
    x = 208,438,121,875,719,744/492,276,565.48
  6. Step 6: Final answer
    x = 423,416,706.16

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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.