Home / 28,403,013,679.20-42,604,520,518.80-11,852,665,480.80

Finding the Fourth Proportional to 28,403,013,679.20, 42,604,520,518.80 and 11,852,665,480.80

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Solution

The fourth proportional to 28,403,013,679.20, 42,604,520,518.80 and 11,852,665,480.80 is: 17,778,998,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403,013,679.20 : 42,604,520,518.80 = 11,852,665,480.80 : x
  2. Step 2: Convert to fraction form
    28,403,013,679.20/42,604,520,518.80 = 11,852,665,480.80/x
  3. Step 3: Cross multiply
    28,403,013,679.20x = 42,604,520,518.80 × 11,852,665,480.80
  4. Step 4: Simplify right side
    28,403,013,679.20x = 504,977,129,679,216,050,176
  5. Step 5: Solve for x
    x = 504,977,129,679,216,050,176/28,403,013,679.20
  6. Step 6: Final answer
    x = 17,778,998,221.20

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1.5x scale

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.