Home / 78,319,488.13-108,074,557.12-45,281,856.94

Finding the Fourth Proportional to 78,319,488.13, 108,074,557.12 and 45,281,856.94

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Solution

The fourth proportional to 78,319,488.13, 108,074,557.12 and 45,281,856.94 is: 62,485,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,488.13 : 108,074,557.12 = 45,281,856.94 : x
  2. Step 2: Convert to fraction form
    78,319,488.13/108,074,557.12 = 45,281,856.94/x
  3. Step 3: Cross multiply
    78,319,488.13x = 108,074,557.12 × 45,281,856.94
  4. Step 4: Simplify right side
    78,319,488.13x = 4,893,816,634,484,961
  5. Step 5: Solve for x
    x = 4,893,816,634,484,961/78,319,488.13
  6. Step 6: Final answer
    x = 62,485,299.01

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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.