Home / 139,829,722.76-209,683,680.45-40,097,328.29

Finding the Fourth Proportional to 139,829,722.76, 209,683,680.45 and 40,097,328.29

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Solution

The fourth proportional to 139,829,722.76, 209,683,680.45 and 40,097,328.29 is: 60,128,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,829,722.76 : 209,683,680.45 = 40,097,328.29 : x
  2. Step 2: Convert to fraction form
    139,829,722.76/209,683,680.45 = 40,097,328.29/x
  3. Step 3: Cross multiply
    139,829,722.76x = 209,683,680.45 × 40,097,328.29
  4. Step 4: Simplify right side
    139,829,722.76x = 8,407,755,371,010,685
  5. Step 5: Solve for x
    x = 8,407,755,371,010,685/139,829,722.76
  6. Step 6: Final answer
    x = 60,128,527.79

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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.