Home / 130,318,363.88-179,834,414.98-72,375,344.36

Finding the Fourth Proportional to 130,318,363.88, 179,834,414.98 and 72,375,344.36

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Solution

The fourth proportional to 130,318,363.88, 179,834,414.98 and 72,375,344.36 is: 99,875,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,318,363.88 : 179,834,414.98 = 72,375,344.36 : x
  2. Step 2: Convert to fraction form
    130,318,363.88/179,834,414.98 = 72,375,344.36/x
  3. Step 3: Cross multiply
    130,318,363.88x = 179,834,414.98 × 72,375,344.36
  4. Step 4: Simplify right side
    130,318,363.88x = 13,015,577,711,956,642
  5. Step 5: Solve for x
    x = 13,015,577,711,956,642/130,318,363.88
  6. Step 6: Final answer
    x = 99,875,238.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.