Home / 398,660,099.40-597,990,149.10-291,164,675.40

Finding the Fourth Proportional to 398,660,099.40, 597,990,149.10 and 291,164,675.40

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Solution

The fourth proportional to 398,660,099.40, 597,990,149.10 and 291,164,675.40 is: 436,747,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,660,099.40 : 597,990,149.10 = 291,164,675.40 : x
  2. Step 2: Convert to fraction form
    398,660,099.40/597,990,149.10 = 291,164,675.40/x
  3. Step 3: Cross multiply
    398,660,099.40x = 597,990,149.10 × 291,164,675.40
  4. Step 4: Simplify right side
    398,660,099.40x = 174,113,607,655,099,104
  5. Step 5: Solve for x
    x = 174,113,607,655,099,104/398,660,099.40
  6. Step 6: Final answer
    x = 436,747,013.10

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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.