Home / 52,488,010.40-78,694,690.80-20,127,408.80

Finding the Fourth Proportional to 52,488,010.40, 78,694,690.80 and 20,127,408.80

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Solution

The fourth proportional to 52,488,010.40, 78,694,690.80 and 20,127,408.80 is: 30,176,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488,010.40 : 78,694,690.80 = 20,127,408.80 : x
  2. Step 2: Convert to fraction form
    52,488,010.40/78,694,690.80 = 20,127,408.80/x
  3. Step 3: Cross multiply
    52,488,010.40x = 78,694,690.80 × 20,127,408.80
  4. Step 4: Simplify right side
    52,488,010.40x = 1,583,920,212,121,199
  5. Step 5: Solve for x
    x = 1,583,920,212,121,199/52,488,010.40
  6. Step 6: Final answer
    x = 30,176,800.38

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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.