Home / 643,676,319.40-965,514,479.10-234,745,810.60

Finding the Fourth Proportional to 643,676,319.40, 965,514,479.10 and 234,745,810.60

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Solution

The fourth proportional to 643,676,319.40, 965,514,479.10 and 234,745,810.60 is: 352,118,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,676,319.40 : 965,514,479.10 = 234,745,810.60 : x
  2. Step 2: Convert to fraction form
    643,676,319.40/965,514,479.10 = 234,745,810.60/x
  3. Step 3: Cross multiply
    643,676,319.40x = 965,514,479.10 × 234,745,810.60
  4. Step 4: Simplify right side
    643,676,319.40x = 226,650,479,042,366,272
  5. Step 5: Solve for x
    x = 226,650,479,042,366,272/643,676,319.40
  6. Step 6: Final answer
    x = 352,118,715.90

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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.