Home / 309,290,037.12-464,115,964.32-115,335,446.40

Finding the Fourth Proportional to 309,290,037.12, 464,115,964.32 and 115,335,446.40

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Solution

The fourth proportional to 309,290,037.12, 464,115,964.32 and 115,335,446.40 is: 173,070,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,290,037.12 : 464,115,964.32 = 115,335,446.40 : x
  2. Step 2: Convert to fraction form
    309,290,037.12/464,115,964.32 = 115,335,446.40/x
  3. Step 3: Cross multiply
    309,290,037.12x = 464,115,964.32 × 115,335,446.40
  4. Step 4: Simplify right side
    309,290,037.12x = 53,529,021,926,213,672
  5. Step 5: Solve for x
    x = 53,529,021,926,213,672/309,290,037.12
  6. Step 6: Final answer
    x = 173,070,631.13

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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.