Home / 448,276,864.28-618,820,438.20-289,584,363.60

Finding the Fourth Proportional to 448,276,864.28, 618,820,438.20 and 289,584,363.60

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Solution

The fourth proportional to 448,276,864.28, 618,820,438.20 and 289,584,363.60 is: 399,754,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,276,864.28 : 618,820,438.20 = 289,584,363.60 : x
  2. Step 2: Convert to fraction form
    448,276,864.28/618,820,438.20 = 289,584,363.60/x
  3. Step 3: Cross multiply
    448,276,864.28x = 618,820,438.20 × 289,584,363.60
  4. Step 4: Simplify right side
    448,276,864.28x = 179,200,722,777,734,176
  5. Step 5: Solve for x
    x = 179,200,722,777,734,176/448,276,864.28
  6. Step 6: Final answer
    x = 399,754,564.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.