Home / 749,137,286.80-1,123,705,930.20-196,438,646.80

Finding the Fourth Proportional to 749,137,286.80, 1,123,705,930.20 and 196,438,646.80

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Solution

The fourth proportional to 749,137,286.80, 1,123,705,930.20 and 196,438,646.80 is: 294,657,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,137,286.80 : 1,123,705,930.20 = 196,438,646.80 : x
  2. Step 2: Convert to fraction form
    749,137,286.80/1,123,705,930.20 = 196,438,646.80/x
  3. Step 3: Cross multiply
    749,137,286.80x = 1,123,705,930.20 × 196,438,646.80
  4. Step 4: Simplify right side
    749,137,286.80x = 220,739,272,329,623,264
  5. Step 5: Solve for x
    x = 220,739,272,329,623,264/749,137,286.80
  6. Step 6: Final answer
    x = 294,657,970.20

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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.