Home / 431,330,686.60-646,996,029.90-268,072,011.40

Finding the Fourth Proportional to 431,330,686.60, 646,996,029.90 and 268,072,011.40

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Solution

The fourth proportional to 431,330,686.60, 646,996,029.90 and 268,072,011.40 is: 402,108,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,330,686.60 : 646,996,029.90 = 268,072,011.40 : x
  2. Step 2: Convert to fraction form
    431,330,686.60/646,996,029.90 = 268,072,011.40/x
  3. Step 3: Cross multiply
    431,330,686.60x = 646,996,029.90 × 268,072,011.40
  4. Step 4: Simplify right side
    431,330,686.60x = 173,441,527,103,107,552
  5. Step 5: Solve for x
    x = 173,441,527,103,107,552/431,330,686.60
  6. Step 6: Final answer
    x = 402,108,017.10

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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.