Home / 143,702,904.60-198,310,095.23-77,623,432.06

Finding the Fourth Proportional to 143,702,904.60, 198,310,095.23 and 77,623,432.06

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Solution

The fourth proportional to 143,702,904.60, 198,310,095.23 and 77,623,432.06 is: 107,120,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,702,904.60 : 198,310,095.23 = 77,623,432.06 : x
  2. Step 2: Convert to fraction form
    143,702,904.60/198,310,095.23 = 77,623,432.06/x
  3. Step 3: Cross multiply
    143,702,904.60x = 198,310,095.23 × 77,623,432.06
  4. Step 4: Simplify right side
    143,702,904.60x = 15,393,510,202,986,126
  5. Step 5: Solve for x
    x = 15,393,510,202,986,126/143,702,904.60
  6. Step 6: Final answer
    x = 107,120,383.17

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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.