Home / 71,852,423.40-107,778,635.10-20,736,109.80

Finding the Fourth Proportional to 71,852,423.40, 107,778,635.10 and 20,736,109.80

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Solution

The fourth proportional to 71,852,423.40, 107,778,635.10 and 20,736,109.80 is: 31,104,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,852,423.40 : 107,778,635.10 = 20,736,109.80 : x
  2. Step 2: Convert to fraction form
    71,852,423.40/107,778,635.10 = 20,736,109.80/x
  3. Step 3: Cross multiply
    71,852,423.40x = 107,778,635.10 × 20,736,109.80
  4. Step 4: Simplify right side
    71,852,423.40x = 2,234,909,611,527,734
  5. Step 5: Solve for x
    x = 2,234,909,611,527,734/71,852,423.40
  6. Step 6: Final answer
    x = 31,104,164.70

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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.