Home / 145,206,815.40-217,810,223.10-68,679,311.40

Finding the Fourth Proportional to 145,206,815.40, 217,810,223.10 and 68,679,311.40

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Solution

The fourth proportional to 145,206,815.40, 217,810,223.10 and 68,679,311.40 is: 103,018,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,206,815.40 : 217,810,223.10 = 68,679,311.40 : x
  2. Step 2: Convert to fraction form
    145,206,815.40/217,810,223.10 = 68,679,311.40/x
  3. Step 3: Cross multiply
    145,206,815.40x = 217,810,223.10 × 68,679,311.40
  4. Step 4: Simplify right side
    145,206,815.40x = 14,959,056,138,388,374
  5. Step 5: Solve for x
    x = 14,959,056,138,388,374/145,206,815.40
  6. Step 6: Final answer
    x = 103,018,967.10

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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.