Home / 521,935,781.43-782,386,536.81-245,091,416.97

Finding the Fourth Proportional to 521,935,781.43, 782,386,536.81 and 245,091,416.97

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Solution

The fourth proportional to 521,935,781.43, 782,386,536.81 and 245,091,416.97 is: 367,394,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,935,781.43 : 782,386,536.81 = 245,091,416.97 : x
  2. Step 2: Convert to fraction form
    521,935,781.43/782,386,536.81 = 245,091,416.97/x
  3. Step 3: Cross multiply
    521,935,781.43x = 782,386,536.81 × 245,091,416.97
  4. Step 4: Simplify right side
    521,935,781.43x = 191,756,224,925,013,952
  5. Step 5: Solve for x
    x = 191,756,224,925,013,952/521,935,781.43
  6. Step 6: Final answer
    x = 367,394,288.24

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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.