Home / 160,520,864.28-221,519,926.45-87,182,006.28

Finding the Fourth Proportional to 160,520,864.28, 221,519,926.45 and 87,182,006.28

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Solution

The fourth proportional to 160,520,864.28, 221,519,926.45 and 87,182,006.28 is: 120,311,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,520,864.28 : 221,519,926.45 = 87,182,006.28 : x
  2. Step 2: Convert to fraction form
    160,520,864.28/221,519,926.45 = 87,182,006.28/x
  3. Step 3: Cross multiply
    160,520,864.28x = 221,519,926.45 × 87,182,006.28
  4. Step 4: Simplify right side
    160,520,864.28x = 19,312,551,618,909,036
  5. Step 5: Solve for x
    x = 19,312,551,618,909,036/160,520,864.28
  6. Step 6: Final answer
    x = 120,311,784.42

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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.