Home / 714,933,911.20-1,072,400,866.80-442,836,119.20

Finding the Fourth Proportional to 714,933,911.20, 1,072,400,866.80 and 442,836,119.20

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Solution

The fourth proportional to 714,933,911.20, 1,072,400,866.80 and 442,836,119.20 is: 664,254,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,933,911.20 : 1,072,400,866.80 = 442,836,119.20 : x
  2. Step 2: Convert to fraction form
    714,933,911.20/1,072,400,866.80 = 442,836,119.20/x
  3. Step 3: Cross multiply
    714,933,911.20x = 1,072,400,866.80 × 442,836,119.20
  4. Step 4: Simplify right side
    714,933,911.20x = 474,897,838,080,428,096
  5. Step 5: Solve for x
    x = 474,897,838,080,428,096/714,933,911.20
  6. Step 6: Final answer
    x = 664,254,178.80

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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.