Home / 379,425,841.47-523,567,350.54-209,853,132.98

Finding the Fourth Proportional to 379,425,841.47, 523,567,350.54 and 209,853,132.98

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Solution

The fourth proportional to 379,425,841.47, 523,567,350.54 and 209,853,132.98 is: 289,575,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,425,841.47 : 523,567,350.54 = 209,853,132.98 : x
  2. Step 2: Convert to fraction form
    379,425,841.47/523,567,350.54 = 209,853,132.98/x
  3. Step 3: Cross multiply
    379,425,841.47x = 523,567,350.54 × 209,853,132.98
  4. Step 4: Simplify right side
    379,425,841.47x = 109,872,248,834,239,056
  5. Step 5: Solve for x
    x = 109,872,248,834,239,056/379,425,841.47
  6. Step 6: Final answer
    x = 289,575,028.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.