Home / 284,628,331.36-392,787,433.28-154,248,139.36

Finding the Fourth Proportional to 284,628,331.36, 392,787,433.28 and 154,248,139.36

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Solution

The fourth proportional to 284,628,331.36, 392,787,433.28 and 154,248,139.36 is: 212,862,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,628,331.36 : 392,787,433.28 = 154,248,139.36 : x
  2. Step 2: Convert to fraction form
    284,628,331.36/392,787,433.28 = 154,248,139.36/x
  3. Step 3: Cross multiply
    284,628,331.36x = 392,787,433.28 × 154,248,139.36
  4. Step 4: Simplify right side
    284,628,331.36x = 60,586,730,747,430,144
  5. Step 5: Solve for x
    x = 60,586,730,747,430,144/284,628,331.36
  6. Step 6: Final answer
    x = 212,862,614.41

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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.