Home / 129,486,983.20-194,230,474.80-118,905,402.40

Finding the Fourth Proportional to 129,486,983.20, 194,230,474.80 and 118,905,402.40

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Solution

The fourth proportional to 129,486,983.20, 194,230,474.80 and 118,905,402.40 is: 178,358,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,486,983.20 : 194,230,474.80 = 118,905,402.40 : x
  2. Step 2: Convert to fraction form
    129,486,983.20/194,230,474.80 = 118,905,402.40/x
  3. Step 3: Cross multiply
    129,486,983.20x = 194,230,474.80 × 118,905,402.40
  4. Step 4: Simplify right side
    129,486,983.20x = 23,095,052,764,437,064
  5. Step 5: Solve for x
    x = 23,095,052,764,437,064/129,486,983.20
  6. Step 6: Final answer
    x = 178,358,103.60

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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.