Home / 66,078,002.20-99,117,003.30-40,249,969.60

Finding the Fourth Proportional to 66,078,002.20, 99,117,003.30 and 40,249,969.60

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Solution

The fourth proportional to 66,078,002.20, 99,117,003.30 and 40,249,969.60 is: 60,374,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078,002.20 : 99,117,003.30 = 40,249,969.60 : x
  2. Step 2: Convert to fraction form
    66,078,002.20/99,117,003.30 = 40,249,969.60/x
  3. Step 3: Cross multiply
    66,078,002.20x = 99,117,003.30 × 40,249,969.60
  4. Step 4: Simplify right side
    66,078,002.20x = 3,989,456,369,668,099.50
  5. Step 5: Solve for x
    x = 3,989,456,369,668,099.50/66,078,002.20
  6. Step 6: Final answer
    x = 60,374,954.40

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Double scale
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Similar ratio
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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.