Home / 641,261,885.20-961,137,000.60-479,514,864.40

Finding the Fourth Proportional to 641,261,885.20, 961,137,000.60 and 479,514,864.40

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Solution

The fourth proportional to 641,261,885.20, 961,137,000.60 and 479,514,864.40 is: 718,707,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,261,885.20 : 961,137,000.60 = 479,514,864.40 : x
  2. Step 2: Convert to fraction form
    641,261,885.20/961,137,000.60 = 479,514,864.40/x
  3. Step 3: Cross multiply
    641,261,885.20x = 961,137,000.60 × 479,514,864.40
  4. Step 4: Simplify right side
    641,261,885.20x = 460,879,478,512,531,712
  5. Step 5: Solve for x
    x = 460,879,478,512,531,712/641,261,885.20
  6. Step 6: Final answer
    x = 718,707,113.50

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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.