Home / 129,872,228.40-194,808,342.60-80,554,503.60

Finding the Fourth Proportional to 129,872,228.40, 194,808,342.60 and 80,554,503.60

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Solution

The fourth proportional to 129,872,228.40, 194,808,342.60 and 80,554,503.60 is: 120,831,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872,228.40 : 194,808,342.60 = 80,554,503.60 : x
  2. Step 2: Convert to fraction form
    129,872,228.40/194,808,342.60 = 80,554,503.60/x
  3. Step 3: Cross multiply
    129,872,228.40x = 194,808,342.60 × 80,554,503.60
  4. Step 4: Simplify right side
    129,872,228.40x = 15,692,689,335,281,732
  5. Step 5: Solve for x
    x = 15,692,689,335,281,732/129,872,228.40
  6. Step 6: Final answer
    x = 120,831,755.40

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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.