Home / 688,217,826.74-949,854,502.85-406,029,257.24

Finding the Fourth Proportional to 688,217,826.74, 949,854,502.85 and 406,029,257.24

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Solution

The fourth proportional to 688,217,826.74, 949,854,502.85 and 406,029,257.24 is: 560,387,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,217,826.74 : 949,854,502.85 = 406,029,257.24 : x
  2. Step 2: Convert to fraction form
    688,217,826.74/949,854,502.85 = 406,029,257.24/x
  3. Step 3: Cross multiply
    688,217,826.74x = 949,854,502.85 × 406,029,257.24
  4. Step 4: Simplify right side
    688,217,826.74x = 385,668,718,274,520,768
  5. Step 5: Solve for x
    x = 385,668,718,274,520,768/688,217,826.74
  6. Step 6: Final answer
    x = 560,387,573.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.