Home / 85,536,015.40-128,304,023.10-65,380,623.40

Finding the Fourth Proportional to 85,536,015.40, 128,304,023.10 and 65,380,623.40

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Solution

The fourth proportional to 85,536,015.40, 128,304,023.10 and 65,380,623.40 is: 98,070,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,015.40 : 128,304,023.10 = 65,380,623.40 : x
  2. Step 2: Convert to fraction form
    85,536,015.40/128,304,023.10 = 65,380,623.40/x
  3. Step 3: Cross multiply
    85,536,015.40x = 128,304,023.10 × 65,380,623.40
  4. Step 4: Simplify right side
    85,536,015.40x = 8,388,597,015,006,000
  5. Step 5: Solve for x
    x = 8,388,597,015,006,000/85,536,015.40
  6. Step 6: Final answer
    x = 98,070,935.10

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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.