Home / 288,146,855.00-397,642,575.67-155,987,753.47

Finding the Fourth Proportional to 288,146,855.00, 397,642,575.67 and 155,987,753.47

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Solution

The fourth proportional to 288,146,855.00, 397,642,575.67 and 155,987,753.47 is: 215,263,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,146,855.00 : 397,642,575.67 = 155,987,753.47 : x
  2. Step 2: Convert to fraction form
    288,146,855.00/397,642,575.67 = 155,987,753.47/x
  3. Step 3: Cross multiply
    288,146,855.00x = 397,642,575.67 × 155,987,753.47
  4. Step 4: Simplify right side
    288,146,855.00x = 62,027,372,061,403,704
  5. Step 5: Solve for x
    x = 62,027,372,061,403,704/288,146,855.00
  6. Step 6: Final answer
    x = 215,263,054.18

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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.