Home / 817,459,986.24-1,226,385,208.80-272,206,244.16

Finding the Fourth Proportional to 817,459,986.24, 1,226,385,208.80 and 272,206,244.16

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Solution

The fourth proportional to 817,459,986.24, 1,226,385,208.80 and 272,206,244.16 is: 408,374,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,459,986.24 : 1,226,385,208.80 = 272,206,244.16 : x
  2. Step 2: Convert to fraction form
    817,459,986.24/1,226,385,208.80 = 272,206,244.16/x
  3. Step 3: Cross multiply
    817,459,986.24x = 1,226,385,208.80 × 272,206,244.16
  4. Step 4: Simplify right side
    817,459,986.24x = 333,829,711,580,825,408
  5. Step 5: Solve for x
    x = 333,829,711,580,825,408/817,459,986.24
  6. Step 6: Final answer
    x = 408,374,375.75

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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.