Home / 129,872,093.40-194,808,140.10-80,554,368.60

Finding the Fourth Proportional to 129,872,093.40, 194,808,140.10 and 80,554,368.60

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Solution

The fourth proportional to 129,872,093.40, 194,808,140.10 and 80,554,368.60 is: 120,831,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872,093.40 : 194,808,140.10 = 80,554,368.60 : x
  2. Step 2: Convert to fraction form
    129,872,093.40/194,808,140.10 = 80,554,368.60/x
  3. Step 3: Cross multiply
    129,872,093.40x = 194,808,140.10 × 80,554,368.60
  4. Step 4: Simplify right side
    129,872,093.40x = 15,692,646,723,895,840
  5. Step 5: Solve for x
    x = 15,692,646,723,895,840/129,872,093.40
  6. Step 6: Final answer
    x = 120,831,552.90

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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.