Home / 825,374,486.80-1,239,496,620.90-437,953,997.80

Finding the Fourth Proportional to 825,374,486.80, 1,239,496,620.90 and 437,953,997.80

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Solution

The fourth proportional to 825,374,486.80, 1,239,496,620.90 and 437,953,997.80 is: 657,692,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,374,486.80 : 1,239,496,620.90 = 437,953,997.80 : x
  2. Step 2: Convert to fraction form
    825,374,486.80/1,239,496,620.90 = 437,953,997.80/x
  3. Step 3: Cross multiply
    825,374,486.80x = 1,239,496,620.90 × 437,953,997.80
  4. Step 4: Simplify right side
    825,374,486.80x = 542,842,500,382,746,112
  5. Step 5: Solve for x
    x = 542,842,500,382,746,112/825,374,486.80
  6. Step 6: Final answer
    x = 657,692,367.60

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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.