Home / 30,267,517.20-45,401,275.80-21,020,443.80

Finding the Fourth Proportional to 30,267,517.20, 45,401,275.80 and 21,020,443.80

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Solution

The fourth proportional to 30,267,517.20, 45,401,275.80 and 21,020,443.80 is: 31,530,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267,517.20 : 45,401,275.80 = 21,020,443.80 : x
  2. Step 2: Convert to fraction form
    30,267,517.20/45,401,275.80 = 21,020,443.80/x
  3. Step 3: Cross multiply
    30,267,517.20x = 45,401,275.80 × 21,020,443.80
  4. Step 4: Simplify right side
    30,267,517.20x = 954,354,966,402,200
  5. Step 5: Solve for x
    x = 954,354,966,402,200/30,267,517.20
  6. Step 6: Final answer
    x = 31,530,665.70

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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.