Home / 143,789,965.40-215,684,948.10-120,831,714.20

Finding the Fourth Proportional to 143,789,965.40, 215,684,948.10 and 120,831,714.20

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Solution

The fourth proportional to 143,789,965.40, 215,684,948.10 and 120,831,714.20 is: 181,247,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,789,965.40 : 215,684,948.10 = 120,831,714.20 : x
  2. Step 2: Convert to fraction form
    143,789,965.40/215,684,948.10 = 120,831,714.20/x
  3. Step 3: Cross multiply
    143,789,965.40x = 215,684,948.10 × 120,831,714.20
  4. Step 4: Simplify right side
    143,789,965.40x = 26,061,582,006,061,032
  5. Step 5: Solve for x
    x = 26,061,582,006,061,032/143,789,965.40
  6. Step 6: Final answer
    x = 181,247,571.30

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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.