Home / 147,512,036.20-221,436,015.90-86,961,879.40

Finding the Fourth Proportional to 147,512,036.20, 221,436,015.90 and 86,961,879.40

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Solution

The fourth proportional to 147,512,036.20, 221,436,015.90 and 86,961,879.40 is: 130,541,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,512,036.20 : 221,436,015.90 = 86,961,879.40 : x
  2. Step 2: Convert to fraction form
    147,512,036.20/221,436,015.90 = 86,961,879.40/x
  3. Step 3: Cross multiply
    147,512,036.20x = 221,436,015.90 × 86,961,879.40
  4. Step 4: Simplify right side
    147,512,036.20x = 19,256,492,109,512,284
  5. Step 5: Solve for x
    x = 19,256,492,109,512,284/147,512,036.20
  6. Step 6: Final answer
    x = 130,541,836.49

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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.