Home / 143,932,165.20-215,898,247.80-120,017,320.20

Finding the Fourth Proportional to 143,932,165.20, 215,898,247.80 and 120,017,320.20

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Solution

The fourth proportional to 143,932,165.20, 215,898,247.80 and 120,017,320.20 is: 180,025,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,165.20 : 215,898,247.80 = 120,017,320.20 : x
  2. Step 2: Convert to fraction form
    143,932,165.20/215,898,247.80 = 120,017,320.20/x
  3. Step 3: Cross multiply
    143,932,165.20x = 215,898,247.80 × 120,017,320.20
  4. Step 4: Simplify right side
    143,932,165.20x = 25,911,529,136,831,548
  5. Step 5: Solve for x
    x = 25,911,529,136,831,548/143,932,165.20
  6. Step 6: Final answer
    x = 180,025,980.30

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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.