Home / 28,905,458.04-39,890,264.46-15,853,236.60

Finding the Fourth Proportional to 28,905,458.04, 39,890,264.46 and 15,853,236.60

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Solution

The fourth proportional to 28,905,458.04, 39,890,264.46 and 15,853,236.60 is: 21,877,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905,458.04 : 39,890,264.46 = 15,853,236.60 : x
  2. Step 2: Convert to fraction form
    28,905,458.04/39,890,264.46 = 15,853,236.60/x
  3. Step 3: Cross multiply
    28,905,458.04x = 39,890,264.46 × 15,853,236.60
  4. Step 4: Simplify right side
    28,905,458.04x = 632,389,800,520,951.25
  5. Step 5: Solve for x
    x = 632,389,800,520,951.25/28,905,458.04
  6. Step 6: Final answer
    x = 21,877,868.17

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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.