Home / 66,920,047.20-100,380,070.80-21,486,434.40

Finding the Fourth Proportional to 66,920,047.20, 100,380,070.80 and 21,486,434.40

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Solution

The fourth proportional to 66,920,047.20, 100,380,070.80 and 21,486,434.40 is: 32,229,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,920,047.20 : 100,380,070.80 = 21,486,434.40 : x
  2. Step 2: Convert to fraction form
    66,920,047.20/100,380,070.80 = 21,486,434.40/x
  3. Step 3: Cross multiply
    66,920,047.20x = 100,380,070.80 × 21,486,434.40
  4. Step 4: Simplify right side
    66,920,047.20x = 2,156,809,806,311,555.25
  5. Step 5: Solve for x
    x = 2,156,809,806,311,555.25/66,920,047.20
  6. Step 6: Final answer
    x = 32,229,651.60

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1.5x scale

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.