Home / 66,434,437.20-99,651,655.80-40,792,299.60

Finding the Fourth Proportional to 66,434,437.20, 99,651,655.80 and 40,792,299.60

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Solution

The fourth proportional to 66,434,437.20, 99,651,655.80 and 40,792,299.60 is: 61,188,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434,437.20 : 99,651,655.80 = 40,792,299.60 : x
  2. Step 2: Convert to fraction form
    66,434,437.20/99,651,655.80 = 40,792,299.60/x
  3. Step 3: Cross multiply
    66,434,437.20x = 99,651,655.80 × 40,792,299.60
  4. Step 4: Simplify right side
    66,434,437.20x = 4,065,020,199,029,677.50
  5. Step 5: Solve for x
    x = 4,065,020,199,029,677.50/66,434,437.20
  6. Step 6: Final answer
    x = 61,188,449.40

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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.