Home / 66,078,004.70-99,117,007.05-40,249,972.10

Finding the Fourth Proportional to 66,078,004.70, 99,117,007.05 and 40,249,972.10

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Solution

The fourth proportional to 66,078,004.70, 99,117,007.05 and 40,249,972.10 is: 60,374,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078,004.70 : 99,117,007.05 = 40,249,972.10 : x
  2. Step 2: Convert to fraction form
    66,078,004.70/99,117,007.05 = 40,249,972.10/x
  3. Step 3: Cross multiply
    66,078,004.70x = 99,117,007.05 × 40,249,972.10
  4. Step 4: Simplify right side
    66,078,004.70x = 3,989,456,768,398,003.50
  5. Step 5: Solve for x
    x = 3,989,456,768,398,003.50/66,078,004.70
  6. Step 6: Final answer
    x = 60,374,958.15

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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.