Home / 1,040,042,929.20-1,560,064,393.80-349,720,753.20

Finding the Fourth Proportional to 1,040,042,929.20, 1,560,064,393.80 and 349,720,753.20

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Solution

The fourth proportional to 1,040,042,929.20, 1,560,064,393.80 and 349,720,753.20 is: 524,581,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,042,929.20 : 1,560,064,393.80 = 349,720,753.20 : x
  2. Step 2: Convert to fraction form
    1,040,042,929.20/1,560,064,393.80 = 349,720,753.20/x
  3. Step 3: Cross multiply
    1,040,042,929.20x = 1,560,064,393.80 × 349,720,753.20
  4. Step 4: Simplify right side
    1,040,042,929.20x = 545,586,894,840,237,376
  5. Step 5: Solve for x
    x = 545,586,894,840,237,376/1,040,042,929.20
  6. Step 6: Final answer
    x = 524,581,129.80

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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.