Home / 386,880,013.60-580,320,020.40-264,436,007.20

Finding the Fourth Proportional to 386,880,013.60, 580,320,020.40 and 264,436,007.20

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Solution

The fourth proportional to 386,880,013.60, 580,320,020.40 and 264,436,007.20 is: 396,654,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,880,013.60 : 580,320,020.40 = 264,436,007.20 : x
  2. Step 2: Convert to fraction form
    386,880,013.60/580,320,020.40 = 264,436,007.20/x
  3. Step 3: Cross multiply
    386,880,013.60x = 580,320,020.40 × 264,436,007.20
  4. Step 4: Simplify right side
    386,880,013.60x = 153,457,509,092,798,528
  5. Step 5: Solve for x
    x = 153,457,509,092,798,528/386,880,013.60
  6. Step 6: Final answer
    x = 396,654,010.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.