Home / 545,331,326.10-817,996,989.15-423,503,178.90

Finding the Fourth Proportional to 545,331,326.10, 817,996,989.15 and 423,503,178.90

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Solution

The fourth proportional to 545,331,326.10, 817,996,989.15 and 423,503,178.90 is: 635,254,768.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,331,326.10 : 817,996,989.15 = 423,503,178.90 : x
  2. Step 2: Convert to fraction form
    545,331,326.10/817,996,989.15 = 423,503,178.90/x
  3. Step 3: Cross multiply
    545,331,326.10x = 817,996,989.15 × 423,503,178.90
  4. Step 4: Simplify right side
    545,331,326.10x = 346,424,325,235,653,760
  5. Step 5: Solve for x
    x = 346,424,325,235,653,760/545,331,326.10
  6. Step 6: Final answer
    x = 635,254,768.35

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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.