Home / 688,736,964.69-1,033,702,422.17-361,443,710.43

Finding the Fourth Proportional to 688,736,964.69, 1,033,702,422.17 and 361,443,710.43

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Solution

The fourth proportional to 688,736,964.69, 1,033,702,422.17 and 361,443,710.43 is: 542,478,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,736,964.69 : 1,033,702,422.17 = 361,443,710.43 : x
  2. Step 2: Convert to fraction form
    688,736,964.69/1,033,702,422.17 = 361,443,710.43/x
  3. Step 3: Cross multiply
    688,736,964.69x = 1,033,702,422.17 × 361,443,710.43
  4. Step 4: Simplify right side
    688,736,964.69x = 373,625,238,947,795,840
  5. Step 5: Solve for x
    x = 373,625,238,947,795,840/688,736,964.69
  6. Step 6: Final answer
    x = 542,478,853.47

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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.