Home / 788,178,187.20-1,182,267,280.80-497,940,542.40

Finding the Fourth Proportional to 788,178,187.20, 1,182,267,280.80 and 497,940,542.40

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Solution

The fourth proportional to 788,178,187.20, 1,182,267,280.80 and 497,940,542.40 is: 746,910,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,178,187.20 : 1,182,267,280.80 = 497,940,542.40 : x
  2. Step 2: Convert to fraction form
    788,178,187.20/1,182,267,280.80 = 497,940,542.40/x
  3. Step 3: Cross multiply
    788,178,187.20x = 1,182,267,280.80 × 497,940,542.40
  4. Step 4: Simplify right side
    788,178,187.20x = 588,698,811,063,325,056
  5. Step 5: Solve for x
    x = 588,698,811,063,325,056/788,178,187.20
  6. Step 6: Final answer
    x = 746,910,813.60

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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.