Home / 31,547,216.80-47,320,825.20-20,209,808.80

Finding the Fourth Proportional to 31,547,216.80, 47,320,825.20 and 20,209,808.80

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Solution

The fourth proportional to 31,547,216.80, 47,320,825.20 and 20,209,808.80 is: 30,314,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547,216.80 : 47,320,825.20 = 20,209,808.80 : x
  2. Step 2: Convert to fraction form
    31,547,216.80/47,320,825.20 = 20,209,808.80/x
  3. Step 3: Cross multiply
    31,547,216.80x = 47,320,825.20 × 20,209,808.80
  4. Step 4: Simplify right side
    31,547,216.80x = 956,344,829,550,221.88
  5. Step 5: Solve for x
    x = 956,344,829,550,221.88/31,547,216.80
  6. Step 6: Final answer
    x = 30,314,713.20

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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.