Home / 426,302,997.60-639,454,496.40-103,186,869.60

Finding the Fourth Proportional to 426,302,997.60, 639,454,496.40 and 103,186,869.60

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Solution

The fourth proportional to 426,302,997.60, 639,454,496.40 and 103,186,869.60 is: 154,780,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,302,997.60 : 639,454,496.40 = 103,186,869.60 : x
  2. Step 2: Convert to fraction form
    426,302,997.60/639,454,496.40 = 103,186,869.60/x
  3. Step 3: Cross multiply
    426,302,997.60x = 639,454,496.40 × 103,186,869.60
  4. Step 4: Simplify right side
    426,302,997.60x = 65,983,307,735,160,464
  5. Step 5: Solve for x
    x = 65,983,307,735,160,464/426,302,997.60
  6. Step 6: Final answer
    x = 154,780,304.40

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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.