Home / 587,412,010.80-880,161,422.40-432,443,815.20

Finding the Fourth Proportional to 587,412,010.80, 880,161,422.40 and 432,443,815.20

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Solution

The fourth proportional to 587,412,010.80, 880,161,422.40 and 432,443,815.20 is: 647,961,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,412,010.80 : 880,161,422.40 = 432,443,815.20 : x
  2. Step 2: Convert to fraction form
    587,412,010.80/880,161,422.40 = 432,443,815.20/x
  3. Step 3: Cross multiply
    587,412,010.80x = 880,161,422.40 × 432,443,815.20
  4. Step 4: Simplify right side
    587,412,010.80x = 380,620,363,494,514,688
  5. Step 5: Solve for x
    x = 380,620,363,494,514,688/587,412,010.80
  6. Step 6: Final answer
    x = 647,961,492.95

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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.