Home / 309,013,278.76-463,448,008.36-115,016,056.12

Finding the Fourth Proportional to 309,013,278.76, 463,448,008.36 and 115,016,056.12

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Solution

The fourth proportional to 309,013,278.76, 463,448,008.36 and 115,016,056.12 is: 172,497,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,013,278.76 : 463,448,008.36 = 115,016,056.12 : x
  2. Step 2: Convert to fraction form
    309,013,278.76/463,448,008.36 = 115,016,056.12/x
  3. Step 3: Cross multiply
    309,013,278.76x = 463,448,008.36 × 115,016,056.12
  4. Step 4: Simplify right side
    309,013,278.76x = 53,303,962,138,235,992
  5. Step 5: Solve for x
    x = 53,303,962,138,235,992/309,013,278.76
  6. Step 6: Final answer
    x = 172,497,319.05

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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.