Home / 138,817,874.20-208,226,811.30-70,793,426.20

Finding the Fourth Proportional to 138,817,874.20, 208,226,811.30 and 70,793,426.20

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Solution

The fourth proportional to 138,817,874.20, 208,226,811.30 and 70,793,426.20 is: 106,190,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,817,874.20 : 208,226,811.30 = 70,793,426.20 : x
  2. Step 2: Convert to fraction form
    138,817,874.20/208,226,811.30 = 70,793,426.20/x
  3. Step 3: Cross multiply
    138,817,874.20x = 208,226,811.30 × 70,793,426.20
  4. Step 4: Simplify right side
    138,817,874.20x = 14,741,089,398,627,878
  5. Step 5: Solve for x
    x = 14,741,089,398,627,878/138,817,874.20
  6. Step 6: Final answer
    x = 106,190,139.30

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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.