Home / 78,547,086.82-108,394,979.02-45,526,489.32

Finding the Fourth Proportional to 78,547,086.82, 108,394,979.02 and 45,526,489.32

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Solution

The fourth proportional to 78,547,086.82, 108,394,979.02 and 45,526,489.32 is: 62,826,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547,086.82 : 108,394,979.02 = 45,526,489.32 : x
  2. Step 2: Convert to fraction form
    78,547,086.82/108,394,979.02 = 45,526,489.32/x
  3. Step 3: Cross multiply
    78,547,086.82x = 108,394,979.02 × 45,526,489.32
  4. Step 4: Simplify right side
    78,547,086.82x = 4,934,842,854,988,319
  5. Step 5: Solve for x
    x = 4,934,842,854,988,319/78,547,086.82
  6. Step 6: Final answer
    x = 62,826,554.81

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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.