Home / 145,206,817.90-217,810,226.85-68,679,313.90

Finding the Fourth Proportional to 145,206,817.90, 217,810,226.85 and 68,679,313.90

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Solution

The fourth proportional to 145,206,817.90, 217,810,226.85 and 68,679,313.90 is: 103,018,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,206,817.90 : 217,810,226.85 = 68,679,313.90 : x
  2. Step 2: Convert to fraction form
    145,206,817.90/217,810,226.85 = 68,679,313.90/x
  3. Step 3: Cross multiply
    145,206,817.90x = 217,810,226.85 × 68,679,313.90
  4. Step 4: Simplify right side
    145,206,817.90x = 14,959,056,940,461,360
  5. Step 5: Solve for x
    x = 14,959,056,940,461,360/145,206,817.90
  6. Step 6: Final answer
    x = 103,018,970.85

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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.