Home / 129,872,090.90-194,808,136.35-80,554,366.10

Finding the Fourth Proportional to 129,872,090.90, 194,808,136.35 and 80,554,366.10

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Solution

The fourth proportional to 129,872,090.90, 194,808,136.35 and 80,554,366.10 is: 120,831,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872,090.90 : 194,808,136.35 = 80,554,366.10 : x
  2. Step 2: Convert to fraction form
    129,872,090.90/194,808,136.35 = 80,554,366.10/x
  3. Step 3: Cross multiply
    129,872,090.90x = 194,808,136.35 × 80,554,366.10
  4. Step 4: Simplify right side
    129,872,090.90x = 15,692,645,934,796,616
  5. Step 5: Solve for x
    x = 15,692,645,934,796,616/129,872,090.90
  6. Step 6: Final answer
    x = 120,831,549.15

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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.