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Finding the Fourth Proportional to 66,051,706.80, 99,077,560.20 and 40,223,674.20

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Solution

The fourth proportional to 66,051,706.80, 99,077,560.20 and 40,223,674.20 is: 60,335,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051,706.80 : 99,077,560.20 = 40,223,674.20 : x
  2. Step 2: Convert to fraction form
    66,051,706.80/99,077,560.20 = 40,223,674.20/x
  3. Step 3: Cross multiply
    66,051,706.80x = 99,077,560.20 × 40,223,674.20
  4. Step 4: Simplify right side
    66,051,706.80x = 3,985,263,502,015,687.50
  5. Step 5: Solve for x
    x = 3,985,263,502,015,687.50/66,051,706.80
  6. Step 6: Final answer
    x = 60,335,511.30

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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.