Home / 543,077,071.15-749,525,330.28-304,948,987.87

Finding the Fourth Proportional to 543,077,071.15, 749,525,330.28 and 304,948,987.87

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Solution

The fourth proportional to 543,077,071.15, 749,525,330.28 and 304,948,987.87 is: 420,873,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,077,071.15 : 749,525,330.28 = 304,948,987.87 : x
  2. Step 2: Convert to fraction form
    543,077,071.15/749,525,330.28 = 304,948,987.87/x
  3. Step 3: Cross multiply
    543,077,071.15x = 749,525,330.28 × 304,948,987.87
  4. Step 4: Simplify right side
    543,077,071.15x = 228,566,990,851,813,472
  5. Step 5: Solve for x
    x = 228,566,990,851,813,472/543,077,071.15
  6. Step 6: Final answer
    x = 420,873,947.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.