Home / 288,146,948.45-397,642,704.98-155,987,847.01

Finding the Fourth Proportional to 288,146,948.45, 397,642,704.98 and 155,987,847.01

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Solution

The fourth proportional to 288,146,948.45, 397,642,704.98 and 155,987,847.01 is: 215,263,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,146,948.45 : 397,642,704.98 = 155,987,847.01 : x
  2. Step 2: Convert to fraction form
    288,146,948.45/397,642,704.98 = 155,987,847.01/x
  3. Step 3: Cross multiply
    288,146,948.45x = 397,642,704.98 × 155,987,847.01
  4. Step 4: Simplify right side
    288,146,948.45x = 62,027,429,427,423,368
  5. Step 5: Solve for x
    x = 62,027,429,427,423,368/288,146,948.45
  6. Step 6: Final answer
    x = 215,263,183.46

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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.