Home / 15,390,446.80-21,236,949.48-8,866,188.40

Finding the Fourth Proportional to 15,390,446.80, 21,236,949.48 and 8,866,188.40

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Solution

The fourth proportional to 15,390,446.80, 21,236,949.48 and 8,866,188.40 is: 12,234,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390,446.80 : 21,236,949.48 = 8,866,188.40 : x
  2. Step 2: Convert to fraction form
    15,390,446.80/21,236,949.48 = 8,866,188.40/x
  3. Step 3: Cross multiply
    15,390,446.80x = 21,236,949.48 × 8,866,188.40
  4. Step 4: Simplify right side
    15,390,446.80x = 188,290,795,130,962.03
  5. Step 5: Solve for x
    x = 188,290,795,130,962.03/15,390,446.80
  6. Step 6: Final answer
    x = 12,234,264.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.