Home / 124,012,480.80-186,018,721.20-80,930,330.40

Finding the Fourth Proportional to 124,012,480.80, 186,018,721.20 and 80,930,330.40

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Solution

The fourth proportional to 124,012,480.80, 186,018,721.20 and 80,930,330.40 is: 121,395,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,012,480.80 : 186,018,721.20 = 80,930,330.40 : x
  2. Step 2: Convert to fraction form
    124,012,480.80/186,018,721.20 = 80,930,330.40/x
  3. Step 3: Cross multiply
    124,012,480.80x = 186,018,721.20 × 80,930,330.40
  4. Step 4: Simplify right side
    124,012,480.80x = 15,054,556,567,301,484
  5. Step 5: Solve for x
    x = 15,054,556,567,301,484/124,012,480.80
  6. Step 6: Final answer
    x = 121,395,495.60

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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.