Home / 648,267,989.28-972,485,689.44-298,429,680.96

Finding the Fourth Proportional to 648,267,989.28, 972,485,689.44 and 298,429,680.96

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Solution

The fourth proportional to 648,267,989.28, 972,485,689.44 and 298,429,680.96 is: 447,683,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,267,989.28 : 972,485,689.44 = 298,429,680.96 : x
  2. Step 2: Convert to fraction form
    648,267,989.28/972,485,689.44 = 298,429,680.96/x
  3. Step 3: Cross multiply
    648,267,989.28x = 972,485,689.44 × 298,429,680.96
  4. Step 4: Simplify right side
    648,267,989.28x = 290,218,594,037,744,832
  5. Step 5: Solve for x
    x = 290,218,594,037,744,832/648,267,989.28
  6. Step 6: Final answer
    x = 447,683,055.21

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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.