Home / 268,780,011.20-403,244,666.40-115,499,499.20

Finding the Fourth Proportional to 268,780,011.20, 403,244,666.40 and 115,499,499.20

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Solution

The fourth proportional to 268,780,011.20, 403,244,666.40 and 115,499,499.20 is: 173,281,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,780,011.20 : 403,244,666.40 = 115,499,499.20 : x
  2. Step 2: Convert to fraction form
    268,780,011.20/403,244,666.40 = 115,499,499.20/x
  3. Step 3: Cross multiply
    268,780,011.20x = 403,244,666.40 × 115,499,499.20
  4. Step 4: Simplify right side
    268,780,011.20x = 46,574,557,024,271,064
  5. Step 5: Solve for x
    x = 46,574,557,024,271,064/268,780,011.20
  6. Step 6: Final answer
    x = 173,281,327.05

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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.