Home / 157,640,789.76-217,539,926.46-87,075,135.24

Finding the Fourth Proportional to 157,640,789.76, 217,539,926.46 and 87,075,135.24

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Solution

The fourth proportional to 157,640,789.76, 217,539,926.46 and 87,075,135.24 is: 120,161,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,640,789.76 : 217,539,926.46 = 87,075,135.24 : x
  2. Step 2: Convert to fraction form
    157,640,789.76/217,539,926.46 = 87,075,135.24/x
  3. Step 3: Cross multiply
    157,640,789.76x = 217,539,926.46 × 87,075,135.24
  4. Step 4: Simplify right side
    157,640,789.76x = 18,942,318,516,604,156
  5. Step 5: Solve for x
    x = 18,942,318,516,604,156/157,640,789.76
  6. Step 6: Final answer
    x = 120,161,276.44

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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.