Home / 84,248,141.20-126,372,211.80-70,643,251.60

Finding the Fourth Proportional to 84,248,141.20, 126,372,211.80 and 70,643,251.60

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Solution

The fourth proportional to 84,248,141.20, 126,372,211.80 and 70,643,251.60 is: 105,964,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,141.20 : 126,372,211.80 = 70,643,251.60 : x
  2. Step 2: Convert to fraction form
    84,248,141.20/126,372,211.80 = 70,643,251.60/x
  3. Step 3: Cross multiply
    84,248,141.20x = 126,372,211.80 × 70,643,251.60
  4. Step 4: Simplify right side
    84,248,141.20x = 8,927,343,953,435,888
  5. Step 5: Solve for x
    x = 8,927,343,953,435,888/84,248,141.20
  6. Step 6: Final answer
    x = 105,964,877.40

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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.