Home / 42,001,012.80-63,001,519.20-30,521,887.20

Finding the Fourth Proportional to 42,001,012.80, 63,001,519.20 and 30,521,887.20

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Solution

The fourth proportional to 42,001,012.80, 63,001,519.20 and 30,521,887.20 is: 45,782,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001,012.80 : 63,001,519.20 = 30,521,887.20 : x
  2. Step 2: Convert to fraction form
    42,001,012.80/63,001,519.20 = 30,521,887.20/x
  3. Step 3: Cross multiply
    42,001,012.80x = 63,001,519.20 × 30,521,887.20
  4. Step 4: Simplify right side
    42,001,012.80x = 1,922,925,262,451,034.25
  5. Step 5: Solve for x
    x = 1,922,925,262,451,034.25/42,001,012.80
  6. Step 6: Final answer
    x = 45,782,830.80

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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.