Home / 426,154,443.10-639,231,664.65-288,404,935.90

Finding the Fourth Proportional to 426,154,443.10, 639,231,664.65 and 288,404,935.90

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Solution

The fourth proportional to 426,154,443.10, 639,231,664.65 and 288,404,935.90 is: 432,607,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,154,443.10 : 639,231,664.65 = 288,404,935.90 : x
  2. Step 2: Convert to fraction form
    426,154,443.10/639,231,664.65 = 288,404,935.90/x
  3. Step 3: Cross multiply
    426,154,443.10x = 639,231,664.65 × 288,404,935.90
  4. Step 4: Simplify right side
    426,154,443.10x = 184,357,567,268,633,536
  5. Step 5: Solve for x
    x = 184,357,567,268,633,536/426,154,443.10
  6. Step 6: Final answer
    x = 432,607,403.85

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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.