Home / 78,319,301.76-108,074,300.04-45,281,670.66

Finding the Fourth Proportional to 78,319,301.76, 108,074,300.04 and 45,281,670.66

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Solution

The fourth proportional to 78,319,301.76, 108,074,300.04 and 45,281,670.66 is: 62,485,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,301.76 : 108,074,300.04 = 45,281,670.66 : x
  2. Step 2: Convert to fraction form
    78,319,301.76/108,074,300.04 = 45,281,670.66/x
  3. Step 3: Cross multiply
    78,319,301.76x = 108,074,300.04 × 45,281,670.66
  4. Step 4: Simplify right side
    78,319,301.76x = 4,893,784,861,221,305
  5. Step 5: Solve for x
    x = 4,893,784,861,221,305/78,319,301.76
  6. Step 6: Final answer
    x = 62,485,042.02

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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.