Home / 28,325,086.40-42,487,564.80-12,140,543.36

Finding the Fourth Proportional to 28,325,086.40, 42,487,564.80 and 12,140,543.36

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Solution

The fourth proportional to 28,325,086.40, 42,487,564.80 and 12,140,543.36 is: 18,210,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325,086.40 : 42,487,564.80 = 12,140,543.36 : x
  2. Step 2: Convert to fraction form
    28,325,086.40/42,487,564.80 = 12,140,543.36/x
  3. Step 3: Cross multiply
    28,325,086.40x = 42,487,564.80 × 12,140,543.36
  4. Step 4: Simplify right side
    28,325,086.40x = 515,822,122,715,209.69
  5. Step 5: Solve for x
    x = 515,822,122,715,209.69/28,325,086.40
  6. Step 6: Final answer
    x = 18,210,787.27

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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.