Home / 21,282,409.12-31,936,331.76-7,820,597.92

Finding the Fourth Proportional to 21,282,409.12, 31,936,331.76 and 7,820,597.92

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Solution

The fourth proportional to 21,282,409.12, 31,936,331.76 and 7,820,597.92 is: 11,735,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,409.12 : 31,936,331.76 = 7,820,597.92 : x
  2. Step 2: Convert to fraction form
    21,282,409.12/31,936,331.76 = 7,820,597.92/x
  3. Step 3: Cross multiply
    21,282,409.12x = 31,936,331.76 × 7,820,597.92
  4. Step 4: Simplify right side
    21,282,409.12x = 249,761,209,734,685.94
  5. Step 5: Solve for x
    x = 249,761,209,734,685.94/21,282,409.12
  6. Step 6: Final answer
    x = 11,735,570.36

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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.