Home / 20,160,657.20-30,240,985.80-7,376,913.20

Finding the Fourth Proportional to 20,160,657.20, 30,240,985.80 and 7,376,913.20

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Solution

The fourth proportional to 20,160,657.20, 30,240,985.80 and 7,376,913.20 is: 11,065,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,657.20 : 30,240,985.80 = 7,376,913.20 : x
  2. Step 2: Convert to fraction form
    20,160,657.20/30,240,985.80 = 7,376,913.20/x
  3. Step 3: Cross multiply
    20,160,657.20x = 30,240,985.80 × 7,376,913.20
  4. Step 4: Simplify right side
    20,160,657.20x = 223,085,127,329,032.56
  5. Step 5: Solve for x
    x = 223,085,127,329,032.56/20,160,657.20
  6. Step 6: Final answer
    x = 11,065,369.80

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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.