Home / 825,374,491.80-1,239,496,628.40-437,954,002.80

Finding the Fourth Proportional to 825,374,491.80, 1,239,496,628.40 and 437,954,002.80

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Solution

The fourth proportional to 825,374,491.80, 1,239,496,628.40 and 437,954,002.80 is: 657,692,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,374,491.80 : 1,239,496,628.40 = 437,954,002.80 : x
  2. Step 2: Convert to fraction form
    825,374,491.80/1,239,496,628.40 = 437,954,002.80/x
  3. Step 3: Cross multiply
    825,374,491.80x = 1,239,496,628.40 × 437,954,002.80
  4. Step 4: Simplify right side
    825,374,491.80x = 542,842,509,864,884,224
  5. Step 5: Solve for x
    x = 542,842,509,864,884,224/825,374,491.80
  6. Step 6: Final answer
    x = 657,692,375.11

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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.