Home / 827,143,401.90-1,240,715,102.85-736,745,287.80

Finding the Fourth Proportional to 827,143,401.90, 1,240,715,102.85 and 736,745,287.80

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Solution

The fourth proportional to 827,143,401.90, 1,240,715,102.85 and 736,745,287.80 is: 1,105,117,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,143,401.90 : 1,240,715,102.85 = 736,745,287.80 : x
  2. Step 2: Convert to fraction form
    827,143,401.90/1,240,715,102.85 = 736,745,287.80/x
  3. Step 3: Cross multiply
    827,143,401.90x = 1,240,715,102.85 × 736,745,287.80
  4. Step 4: Simplify right side
    827,143,401.90x = 914,091,005,527,029,760
  5. Step 5: Solve for x
    x = 914,091,005,527,029,760/827,143,401.90
  6. Step 6: Final answer
    x = 1,105,117,931.70

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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.