Home / 642,225,077.20-963,337,615.80-448,514,832.70

Finding the Fourth Proportional to 642,225,077.20, 963,337,615.80 and 448,514,832.70

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Solution

The fourth proportional to 642,225,077.20, 963,337,615.80 and 448,514,832.70 is: 672,772,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,225,077.20 : 963,337,615.80 = 448,514,832.70 : x
  2. Step 2: Convert to fraction form
    642,225,077.20/963,337,615.80 = 448,514,832.70/x
  3. Step 3: Cross multiply
    642,225,077.20x = 963,337,615.80 × 448,514,832.70
  4. Step 4: Simplify right side
    642,225,077.20x = 432,071,209,584,153,856
  5. Step 5: Solve for x
    x = 432,071,209,584,153,856/642,225,077.20
  6. Step 6: Final answer
    x = 672,772,249.05

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Similar ratio
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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.