Home / 398,103,689.70-597,155,534.55-225,916,805.70

Finding the Fourth Proportional to 398,103,689.70, 597,155,534.55 and 225,916,805.70

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Solution

The fourth proportional to 398,103,689.70, 597,155,534.55 and 225,916,805.70 is: 338,875,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,103,689.70 : 597,155,534.55 = 225,916,805.70 : x
  2. Step 2: Convert to fraction form
    398,103,689.70/597,155,534.55 = 225,916,805.70/x
  3. Step 3: Cross multiply
    398,103,689.70x = 597,155,534.55 × 225,916,805.70
  4. Step 4: Simplify right side
    398,103,689.70x = 134,907,470,871,611,968
  5. Step 5: Solve for x
    x = 134,907,470,871,611,968/398,103,689.70
  6. Step 6: Final answer
    x = 338,875,208.55

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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.