Home / 28,188,440.64-42,288,959.52-9,020,347.92

Finding the Fourth Proportional to 28,188,440.64, 42,288,959.52 and 9,020,347.92

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Solution

The fourth proportional to 28,188,440.64, 42,288,959.52 and 9,020,347.92 is: 13,532,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,440.64 : 42,288,959.52 = 9,020,347.92 : x
  2. Step 2: Convert to fraction form
    28,188,440.64/42,288,959.52 = 9,020,347.92/x
  3. Step 3: Cross multiply
    28,188,440.64x = 42,288,959.52 × 9,020,347.92
  4. Step 4: Simplify right side
    28,188,440.64x = 381,461,128,045,196.25
  5. Step 5: Solve for x
    x = 381,461,128,045,196.25/28,188,440.64
  6. Step 6: Final answer
    x = 13,532,537.43

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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.