Home / 138,817,880.20-208,226,820.30-70,793,432.20

Finding the Fourth Proportional to 138,817,880.20, 208,226,820.30 and 70,793,432.20

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Solution

The fourth proportional to 138,817,880.20, 208,226,820.30 and 70,793,432.20 is: 106,190,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,817,880.20 : 208,226,820.30 = 70,793,432.20 : x
  2. Step 2: Convert to fraction form
    138,817,880.20/208,226,820.30 = 70,793,432.20/x
  3. Step 3: Cross multiply
    138,817,880.20x = 208,226,820.30 × 70,793,432.20
  4. Step 4: Simplify right side
    138,817,880.20x = 14,741,091,285,129,636
  5. Step 5: Solve for x
    x = 14,741,091,285,129,636/138,817,880.20
  6. Step 6: Final answer
    x = 106,190,148.30

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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.