Home / 261,407,548.08-391,842,280.62-115,909,631.64

Finding the Fourth Proportional to 261,407,548.08, 391,842,280.62 and 115,909,631.64

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Solution

The fourth proportional to 261,407,548.08, 391,842,280.62 and 115,909,631.64 is: 173,745,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,407,548.08 : 391,842,280.62 = 115,909,631.64 : x
  2. Step 2: Convert to fraction form
    261,407,548.08/391,842,280.62 = 115,909,631.64/x
  3. Step 3: Cross multiply
    261,407,548.08x = 391,842,280.62 × 115,909,631.64
  4. Step 4: Simplify right side
    261,407,548.08x = 45,418,294,407,641,712
  5. Step 5: Solve for x
    x = 45,418,294,407,641,712/261,407,548.08
  6. Step 6: Final answer
    x = 173,745,152.89

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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.