Home / 99,549,187.20-149,323,780.80-82,543,075.20

Finding the Fourth Proportional to 99,549,187.20, 149,323,780.80 and 82,543,075.20

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Solution

The fourth proportional to 99,549,187.20, 149,323,780.80 and 82,543,075.20 is: 123,814,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549,187.20 : 149,323,780.80 = 82,543,075.20 : x
  2. Step 2: Convert to fraction form
    99,549,187.20/149,323,780.80 = 82,543,075.20/x
  3. Step 3: Cross multiply
    99,549,187.20x = 149,323,780.80 × 82,543,075.20
  4. Step 4: Simplify right side
    99,549,187.20x = 12,325,644,067,722,718
  5. Step 5: Solve for x
    x = 12,325,644,067,722,718/99,549,187.20
  6. Step 6: Final answer
    x = 123,814,612.80

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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.