Home / 70,129,998.40-105,194,997.60-31,866,246.40

Finding the Fourth Proportional to 70,129,998.40, 105,194,997.60 and 31,866,246.40

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Solution

The fourth proportional to 70,129,998.40, 105,194,997.60 and 31,866,246.40 is: 47,799,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,129,998.40 : 105,194,997.60 = 31,866,246.40 : x
  2. Step 2: Convert to fraction form
    70,129,998.40/105,194,997.60 = 31,866,246.40/x
  3. Step 3: Cross multiply
    70,129,998.40x = 105,194,997.60 × 31,866,246.40
  4. Step 4: Simplify right side
    70,129,998.40x = 3,352,169,713,569,008.50
  5. Step 5: Solve for x
    x = 3,352,169,713,569,008.50/70,129,998.40
  6. Step 6: Final answer
    x = 47,799,369.60

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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.