Home / 138,716,851.20-208,012,291.20-52,426,579.20

Finding the Fourth Proportional to 138,716,851.20, 208,012,291.20 and 52,426,579.20

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Solution

The fourth proportional to 138,716,851.20, 208,012,291.20 and 52,426,579.20 is: 78,616,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,716,851.20 : 208,012,291.20 = 52,426,579.20 : x
  2. Step 2: Convert to fraction form
    138,716,851.20/208,012,291.20 = 52,426,579.20/x
  3. Step 3: Cross multiply
    138,716,851.20x = 208,012,291.20 × 52,426,579.20
  4. Step 4: Simplify right side
    138,716,851.20x = 10,905,372,859,170,264
  5. Step 5: Solve for x
    x = 10,905,372,859,170,264/138,716,851.20
  6. Step 6: Final answer
    x = 78,616,064.05

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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.