Home / 123,700,590.57-170,702,138.30-68,699,990.01

Finding the Fourth Proportional to 123,700,590.57, 170,702,138.30 and 68,699,990.01

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Solution

The fourth proportional to 123,700,590.57, 170,702,138.30 and 68,699,990.01 is: 94,803,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,700,590.57 : 170,702,138.30 = 68,699,990.01 : x
  2. Step 2: Convert to fraction form
    123,700,590.57/170,702,138.30 = 68,699,990.01/x
  3. Step 3: Cross multiply
    123,700,590.57x = 170,702,138.30 × 68,699,990.01
  4. Step 4: Simplify right side
    123,700,590.57x = 11,727,235,195,552,138
  5. Step 5: Solve for x
    x = 11,727,235,195,552,138/123,700,590.57
  6. Step 6: Final answer
    x = 94,803,388.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.