Home / 523,320,374.40-784,980,561.60-318,743,145.60

Finding the Fourth Proportional to 523,320,374.40, 784,980,561.60 and 318,743,145.60

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Solution

The fourth proportional to 523,320,374.40, 784,980,561.60 and 318,743,145.60 is: 478,114,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,320,374.40 : 784,980,561.60 = 318,743,145.60 : x
  2. Step 2: Convert to fraction form
    523,320,374.40/784,980,561.60 = 318,743,145.60/x
  3. Step 3: Cross multiply
    523,320,374.40x = 784,980,561.60 × 318,743,145.60
  4. Step 4: Simplify right side
    523,320,374.40x = 250,207,173,439,238,592
  5. Step 5: Solve for x
    x = 250,207,173,439,238,592/523,320,374.40
  6. Step 6: Final answer
    x = 478,114,718.40

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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.