Home / 653,238,067.80-979,857,101.70-326,720,717.40

Finding the Fourth Proportional to 653,238,067.80, 979,857,101.70 and 326,720,717.40

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Solution

The fourth proportional to 653,238,067.80, 979,857,101.70 and 326,720,717.40 is: 490,081,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,238,067.80 : 979,857,101.70 = 326,720,717.40 : x
  2. Step 2: Convert to fraction form
    653,238,067.80/979,857,101.70 = 326,720,717.40/x
  3. Step 3: Cross multiply
    653,238,067.80x = 979,857,101.70 × 326,720,717.40
  4. Step 4: Simplify right side
    653,238,067.80x = 320,139,615,216,908,736
  5. Step 5: Solve for x
    x = 320,139,615,216,908,736/653,238,067.80
  6. Step 6: Final answer
    x = 490,081,076.10

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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.