Home / 1,040,042,986.20-1,560,064,479.30-349,720,810.20

Finding the Fourth Proportional to 1,040,042,986.20, 1,560,064,479.30 and 349,720,810.20

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Solution

The fourth proportional to 1,040,042,986.20, 1,560,064,479.30 and 349,720,810.20 is: 524,581,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,042,986.20 : 1,560,064,479.30 = 349,720,810.20 : x
  2. Step 2: Convert to fraction form
    1,040,042,986.20/1,560,064,479.30 = 349,720,810.20/x
  3. Step 3: Cross multiply
    1,040,042,986.20x = 1,560,064,479.30 × 349,720,810.20
  4. Step 4: Simplify right side
    1,040,042,986.20x = 545,587,013,665,037,120
  5. Step 5: Solve for x
    x = 545,587,013,665,037,120/1,040,042,986.20
  6. Step 6: Final answer
    x = 524,581,215.30

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Double scale
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Similar ratio
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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.