Home / 71,938,358.85-99,274,865.18-38,898,528.86

Finding the Fourth Proportional to 71,938,358.85, 99,274,865.18 and 38,898,528.86

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Solution

The fourth proportional to 71,938,358.85, 99,274,865.18 and 38,898,528.86 is: 53,679,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,938,358.85 : 99,274,865.18 = 38,898,528.86 : x
  2. Step 2: Convert to fraction form
    71,938,358.85/99,274,865.18 = 38,898,528.86/x
  3. Step 3: Cross multiply
    71,938,358.85x = 99,274,865.18 × 38,898,528.86
  4. Step 4: Simplify right side
    71,938,358.85x = 3,861,646,207,585,971.50
  5. Step 5: Solve for x
    x = 3,861,646,207,585,971.50/71,938,358.85
  6. Step 6: Final answer
    x = 53,679,931.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.