Home / 157,043,716.72-216,716,095.01-87,429,103.72

Finding the Fourth Proportional to 157,043,716.72, 216,716,095.01 and 87,429,103.72

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Solution

The fourth proportional to 157,043,716.72, 216,716,095.01 and 87,429,103.72 is: 120,649,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,043,716.72 : 216,716,095.01 = 87,429,103.72 : x
  2. Step 2: Convert to fraction form
    157,043,716.72/216,716,095.01 = 87,429,103.72/x
  3. Step 3: Cross multiply
    157,043,716.72x = 216,716,095.01 × 87,429,103.72
  4. Step 4: Simplify right side
    157,043,716.72x = 18,947,293,948,099,448
  5. Step 5: Solve for x
    x = 18,947,293,948,099,448/157,043,716.72
  6. Step 6: Final answer
    x = 120,649,805.95

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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.