Home / 132,995,241.40-199,156,938.90-87,309,686.20

Finding the Fourth Proportional to 132,995,241.40, 199,156,938.90 and 87,309,686.20

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Solution

The fourth proportional to 132,995,241.40, 199,156,938.90 and 87,309,686.20 is: 130,743,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,995,241.40 : 199,156,938.90 = 87,309,686.20 : x
  2. Step 2: Convert to fraction form
    132,995,241.40/199,156,938.90 = 87,309,686.20/x
  3. Step 3: Cross multiply
    132,995,241.40x = 199,156,938.90 × 87,309,686.20
  4. Step 4: Simplify right side
    132,995,241.40x = 17,388,329,839,911,574
  5. Step 5: Solve for x
    x = 17,388,329,839,911,574/132,995,241.40
  6. Step 6: Final answer
    x = 130,743,999.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.