Home / 511,085,088.71-766,756,618.27-142,619,734.52

Finding the Fourth Proportional to 511,085,088.71, 766,756,618.27 and 142,619,734.52

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Solution

The fourth proportional to 511,085,088.71, 766,756,618.27 and 142,619,734.52 is: 213,965,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,085,088.71 : 766,756,618.27 = 142,619,734.52 : x
  2. Step 2: Convert to fraction form
    511,085,088.71/766,756,618.27 = 142,619,734.52/x
  3. Step 3: Cross multiply
    511,085,088.71x = 766,756,618.27 × 142,619,734.52
  4. Step 4: Simplify right side
    511,085,088.71x = 109,354,625,334,930,048
  5. Step 5: Solve for x
    x = 109,354,625,334,930,048/511,085,088.71
  6. Step 6: Final answer
    x = 213,965,595.46

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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.