Home / 142,949,475.30-213,883,115.13-84,688,431.96

Finding the Fourth Proportional to 142,949,475.30, 213,883,115.13 and 84,688,431.96

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Solution

The fourth proportional to 142,949,475.30, 213,883,115.13 and 84,688,431.96 is: 126,712,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949,475.30 : 213,883,115.13 = 84,688,431.96 : x
  2. Step 2: Convert to fraction form
    142,949,475.30/213,883,115.13 = 84,688,431.96/x
  3. Step 3: Cross multiply
    142,949,475.30x = 213,883,115.13 × 84,688,431.96
  4. Step 4: Simplify right side
    142,949,475.30x = 18,113,425,643,079,848
  5. Step 5: Solve for x
    x = 18,113,425,643,079,848/142,949,475.30
  6. Step 6: Final answer
    x = 126,712,082.05

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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.