Home / 28,366,860,276.80-42,550,290,415.20-18,897,857,115.20

Finding the Fourth Proportional to 28,366,860,276.80, 42,550,290,415.20 and 18,897,857,115.20

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Solution

The fourth proportional to 28,366,860,276.80, 42,550,290,415.20 and 18,897,857,115.20 is: 28,346,785,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,860,276.80 : 42,550,290,415.20 = 18,897,857,115.20 : x
  2. Step 2: Convert to fraction form
    28,366,860,276.80/42,550,290,415.20 = 18,897,857,115.20/x
  3. Step 3: Cross multiply
    28,366,860,276.80x = 42,550,290,415.20 × 18,897,857,115.20
  4. Step 4: Simplify right side
    28,366,860,276.80x = 804,109,308,476,713,598,976
  5. Step 5: Solve for x
    x = 804,109,308,476,713,598,976/28,366,860,276.80
  6. Step 6: Final answer
    x = 28,346,785,672.80

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Double scale
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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.