Home / 109,142,003.20-163,713,004.80-65,492,982.40

Finding the Fourth Proportional to 109,142,003.20, 163,713,004.80 and 65,492,982.40

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Solution

The fourth proportional to 109,142,003.20, 163,713,004.80 and 65,492,982.40 is: 98,239,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,142,003.20 : 163,713,004.80 = 65,492,982.40 : x
  2. Step 2: Convert to fraction form
    109,142,003.20/163,713,004.80 = 65,492,982.40/x
  3. Step 3: Cross multiply
    109,142,003.20x = 163,713,004.80 × 65,492,982.40
  4. Step 4: Simplify right side
    109,142,003.20x = 10,722,052,942,017,516
  5. Step 5: Solve for x
    x = 10,722,052,942,017,516/109,142,003.20
  6. Step 6: Final answer
    x = 98,239,473.60

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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.