Home / 523,338,848.68-784,533,138.53-261,103,605.19

Finding the Fourth Proportional to 523,338,848.68, 784,533,138.53 and 261,103,605.19

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Solution

The fourth proportional to 523,338,848.68, 784,533,138.53 and 261,103,605.19 is: 391,418,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,338,848.68 : 784,533,138.53 = 261,103,605.19 : x
  2. Step 2: Convert to fraction form
    523,338,848.68/784,533,138.53 = 261,103,605.19/x
  3. Step 3: Cross multiply
    523,338,848.68x = 784,533,138.53 × 261,103,605.19
  4. Step 4: Simplify right side
    523,338,848.68x = 204,844,430,861,208,672
  5. Step 5: Solve for x
    x = 204,844,430,861,208,672/523,338,848.68
  6. Step 6: Final answer
    x = 391,418,354.24

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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.