Home / 129,024,011.60-193,536,017.40-72,282,942.80

Finding the Fourth Proportional to 129,024,011.60, 193,536,017.40 and 72,282,942.80

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Solution

The fourth proportional to 129,024,011.60, 193,536,017.40 and 72,282,942.80 is: 108,424,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,011.60 : 193,536,017.40 = 72,282,942.80 : x
  2. Step 2: Convert to fraction form
    129,024,011.60/193,536,017.40 = 72,282,942.80/x
  3. Step 3: Cross multiply
    129,024,011.60x = 193,536,017.40 × 72,282,942.80
  4. Step 4: Simplify right side
    129,024,011.60x = 13,989,352,875,464,004
  5. Step 5: Solve for x
    x = 13,989,352,875,464,004/129,024,011.60
  6. Step 6: Final answer
    x = 108,424,414.20

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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.