Home / 139,831,011.90-209,746,517.85-88,938,647.10

Finding the Fourth Proportional to 139,831,011.90, 209,746,517.85 and 88,938,647.10

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Solution

The fourth proportional to 139,831,011.90, 209,746,517.85 and 88,938,647.10 is: 133,407,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831,011.90 : 209,746,517.85 = 88,938,647.10 : x
  2. Step 2: Convert to fraction form
    139,831,011.90/209,746,517.85 = 88,938,647.10/x
  3. Step 3: Cross multiply
    139,831,011.90x = 209,746,517.85 × 88,938,647.10
  4. Step 4: Simplify right side
    139,831,011.90x = 18,654,571,531,515,000
  5. Step 5: Solve for x
    x = 18,654,571,531,515,000/139,831,011.90
  6. Step 6: Final answer
    x = 133,407,970.65

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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.