Home / 130,815,364.80-180,468,479.44-77,862,380.57

Finding the Fourth Proportional to 130,815,364.80, 180,468,479.44 and 77,862,380.57

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Solution

The fourth proportional to 130,815,364.80, 180,468,479.44 and 77,862,380.57 is: 107,416,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,815,364.80 : 180,468,479.44 = 77,862,380.57 : x
  2. Step 2: Convert to fraction form
    130,815,364.80/180,468,479.44 = 77,862,380.57/x
  3. Step 3: Cross multiply
    130,815,364.80x = 180,468,479.44 × 77,862,380.57
  4. Step 4: Simplify right side
    130,815,364.80x = 14,051,705,427,046,500
  5. Step 5: Solve for x
    x = 14,051,705,427,046,500/130,815,364.80
  6. Step 6: Final answer
    x = 107,416,322.61

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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.