Home / 288,015,531.90-397,462,480.20-155,856,514.08

Finding the Fourth Proportional to 288,015,531.90, 397,462,480.20 and 155,856,514.08

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Solution

The fourth proportional to 288,015,531.90, 397,462,480.20 and 155,856,514.08 is: 215,082,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,015,531.90 : 397,462,480.20 = 155,856,514.08 : x
  2. Step 2: Convert to fraction form
    288,015,531.90/397,462,480.20 = 155,856,514.08/x
  3. Step 3: Cross multiply
    288,015,531.90x = 397,462,480.20 × 155,856,514.08
  4. Step 4: Simplify right side
    288,015,531.90x = 61,947,116,641,563,024
  5. Step 5: Solve for x
    x = 61,947,116,641,563,024/288,015,531.90
  6. Step 6: Final answer
    x = 215,082,555.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.