Home / 143,789,069.90-215,683,604.85-120,830,818.70

Finding the Fourth Proportional to 143,789,069.90, 215,683,604.85 and 120,830,818.70

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Solution

The fourth proportional to 143,789,069.90, 215,683,604.85 and 120,830,818.70 is: 181,246,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,789,069.90 : 215,683,604.85 = 120,830,818.70 : x
  2. Step 2: Convert to fraction form
    143,789,069.90/215,683,604.85 = 120,830,818.70/x
  3. Step 3: Cross multiply
    143,789,069.90x = 215,683,604.85 × 120,830,818.70
  4. Step 4: Simplify right side
    143,789,069.90x = 26,061,226,554,192,792
  5. Step 5: Solve for x
    x = 26,061,226,554,192,792/143,789,069.90
  6. Step 6: Final answer
    x = 181,246,228.05

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1.5x scale

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.