Home / 415,807,321.40-623,710,982.10-396,675,445.40

Finding the Fourth Proportional to 415,807,321.40, 623,710,982.10 and 396,675,445.40

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Solution

The fourth proportional to 415,807,321.40, 623,710,982.10 and 396,675,445.40 is: 595,013,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,807,321.40 : 623,710,982.10 = 396,675,445.40 : x
  2. Step 2: Convert to fraction form
    415,807,321.40/623,710,982.10 = 396,675,445.40/x
  3. Step 3: Cross multiply
    415,807,321.40x = 623,710,982.10 × 396,675,445.40
  4. Step 4: Simplify right side
    415,807,321.40x = 247,410,831,625,388,928
  5. Step 5: Solve for x
    x = 247,410,831,625,388,928/415,807,321.40
  6. Step 6: Final answer
    x = 595,013,168.10

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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.