Home / 1,010,761,372.20-1,514,947,664.70-428,494,492.20

Finding the Fourth Proportional to 1,010,761,372.20, 1,514,947,664.70 and 428,494,492.20

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Solution

The fourth proportional to 1,010,761,372.20, 1,514,947,664.70 and 428,494,492.20 is: 642,235,396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,761,372.20 : 1,514,947,664.70 = 428,494,492.20 : x
  2. Step 2: Convert to fraction form
    1,010,761,372.20/1,514,947,664.70 = 428,494,492.20/x
  3. Step 3: Cross multiply
    1,010,761,372.20x = 1,514,947,664.70 × 428,494,492.20
  4. Step 4: Simplify right side
    1,010,761,372.20x = 649,146,730,295,202,304
  5. Step 5: Solve for x
    x = 649,146,730,295,202,304/1,010,761,372.20
  6. Step 6: Final answer
    x = 642,235,396.16

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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.