Home / 66,267,240.80-99,400,861.20-40,722,643.40

Finding the Fourth Proportional to 66,267,240.80, 99,400,861.20 and 40,722,643.40

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Solution

The fourth proportional to 66,267,240.80, 99,400,861.20 and 40,722,643.40 is: 61,083,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267,240.80 : 99,400,861.20 = 40,722,643.40 : x
  2. Step 2: Convert to fraction form
    66,267,240.80/99,400,861.20 = 40,722,643.40/x
  3. Step 3: Cross multiply
    66,267,240.80x = 99,400,861.20 × 40,722,643.40
  4. Step 4: Simplify right side
    66,267,240.80x = 4,047,865,824,300,496
  5. Step 5: Solve for x
    x = 4,047,865,824,300,496/66,267,240.80
  6. Step 6: Final answer
    x = 61,083,965.10

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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.