Home / 427,013,003.90-639,244,047.45-254,400,967.10

Finding the Fourth Proportional to 427,013,003.90, 639,244,047.45 and 254,400,967.10

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Solution

The fourth proportional to 427,013,003.90, 639,244,047.45 and 254,400,967.10 is: 380,841,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,013,003.90 : 639,244,047.45 = 254,400,967.10 : x
  2. Step 2: Convert to fraction form
    427,013,003.90/639,244,047.45 = 254,400,967.10/x
  3. Step 3: Cross multiply
    427,013,003.90x = 639,244,047.45 × 254,400,967.10
  4. Step 4: Simplify right side
    427,013,003.90x = 162,624,303,884,198,304
  5. Step 5: Solve for x
    x = 162,624,303,884,198,304/427,013,003.90
  6. Step 6: Final answer
    x = 380,841,572.50

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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.