Home / 399,178,066.40-598,767,099.60-291,682,642.40

Finding the Fourth Proportional to 399,178,066.40, 598,767,099.60 and 291,682,642.40

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Solution

The fourth proportional to 399,178,066.40, 598,767,099.60 and 291,682,642.40 is: 437,523,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,066.40 : 598,767,099.60 = 291,682,642.40 : x
  2. Step 2: Convert to fraction form
    399,178,066.40/598,767,099.60 = 291,682,642.40/x
  3. Step 3: Cross multiply
    399,178,066.40x = 598,767,099.60 × 291,682,642.40
  4. Step 4: Simplify right side
    399,178,066.40x = 174,649,969,793,511,968
  5. Step 5: Solve for x
    x = 174,649,969,793,511,968/399,178,066.40
  6. Step 6: Final answer
    x = 437,523,963.60

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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.