Home / 84,248,140.70-126,372,211.05-70,643,251.10

Finding the Fourth Proportional to 84,248,140.70, 126,372,211.05 and 70,643,251.10

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Solution

The fourth proportional to 84,248,140.70, 126,372,211.05 and 70,643,251.10 is: 105,964,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,140.70 : 126,372,211.05 = 70,643,251.10 : x
  2. Step 2: Convert to fraction form
    84,248,140.70/126,372,211.05 = 70,643,251.10/x
  3. Step 3: Cross multiply
    84,248,140.70x = 126,372,211.05 × 70,643,251.10
  4. Step 4: Simplify right side
    84,248,140.70x = 8,927,343,837,267,344
  5. Step 5: Solve for x
    x = 8,927,343,837,267,344/84,248,140.70
  6. Step 6: Final answer
    x = 105,964,876.65

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Double scale
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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.