Home / 313,127,404,817.28-469,605,385,349.28-86,432,664,261.12

Finding the Fourth Proportional to 313,127,404,817.28, 469,605,385,349.28 and 86,432,664,261.12

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Solution

The fourth proportional to 313,127,404,817.28, 469,605,385,349.28 and 86,432,664,261.12 is: 129,625,334,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,127,404,817.28 : 469,605,385,349.28 = 86,432,664,261.12 : x
  2. Step 2: Convert to fraction form
    313,127,404,817.28/469,605,385,349.28 = 86,432,664,261.12/x
  3. Step 3: Cross multiply
    313,127,404,817.28x = 469,605,385,349.28 × 86,432,664,261.12
  4. Step 4: Simplify right side
    313,127,404,817.28x = 40,589,244,607,108,202,102,784
  5. Step 5: Solve for x
    x = 40,589,244,607,108,202,102,784/313,127,404,817.28
  6. Step 6: Final answer
    x = 129,625,334,552.86

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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.