Home / 261,349,181.80-392,034,591.60-77,116,654.28

Finding the Fourth Proportional to 261,349,181.80, 392,034,591.60 and 77,116,654.28

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Solution

The fourth proportional to 261,349,181.80, 392,034,591.60 and 77,116,654.28 is: 115,678,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,349,181.80 : 392,034,591.60 = 77,116,654.28 : x
  2. Step 2: Convert to fraction form
    261,349,181.80/392,034,591.60 = 77,116,654.28/x
  3. Step 3: Cross multiply
    261,349,181.80x = 392,034,591.60 × 77,116,654.28
  4. Step 4: Simplify right side
    261,349,181.80x = 30,232,396,066,218,196
  5. Step 5: Solve for x
    x = 30,232,396,066,218,196/261,349,181.80
  6. Step 6: Final answer
    x = 115,678,173.77

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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.