Home / 426,096,323.10-639,144,484.65-409,374,812.70

Finding the Fourth Proportional to 426,096,323.10, 639,144,484.65 and 409,374,812.70

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Solution

The fourth proportional to 426,096,323.10, 639,144,484.65 and 409,374,812.70 is: 614,062,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,096,323.10 : 639,144,484.65 = 409,374,812.70 : x
  2. Step 2: Convert to fraction form
    426,096,323.10/639,144,484.65 = 409,374,812.70/x
  3. Step 3: Cross multiply
    426,096,323.10x = 639,144,484.65 × 409,374,812.70
  4. Step 4: Simplify right side
    426,096,323.10x = 261,649,653,691,831,744
  5. Step 5: Solve for x
    x = 261,649,653,691,831,744/426,096,323.10
  6. Step 6: Final answer
    x = 614,062,219.05

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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.