Home / 679,853,620.40-1,018,436,737.80-372,595,866.80

Finding the Fourth Proportional to 679,853,620.40, 1,018,436,737.80 and 372,595,866.80

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Solution

The fourth proportional to 679,853,620.40, 1,018,436,737.80 and 372,595,866.80 is: 558,157,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,853,620.40 : 1,018,436,737.80 = 372,595,866.80 : x
  2. Step 2: Convert to fraction form
    679,853,620.40/1,018,436,737.80 = 372,595,866.80/x
  3. Step 3: Cross multiply
    679,853,620.40x = 1,018,436,737.80 × 372,595,866.80
  4. Step 4: Simplify right side
    679,853,620.40x = 379,465,319,101,555,328
  5. Step 5: Solve for x
    x = 379,465,319,101,555,328/679,853,620.40
  6. Step 6: Final answer
    x = 558,157,385.23

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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.