Home / 521,935,772.40-782,386,523.32-245,091,407.94

Finding the Fourth Proportional to 521,935,772.40, 782,386,523.32 and 245,091,407.94

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Solution

The fourth proportional to 521,935,772.40, 782,386,523.32 and 245,091,407.94 is: 367,394,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,935,772.40 : 782,386,523.32 = 245,091,407.94 : x
  2. Step 2: Convert to fraction form
    521,935,772.40/782,386,523.32 = 245,091,407.94/x
  3. Step 3: Cross multiply
    521,935,772.40x = 782,386,523.32 × 245,091,407.94
  4. Step 4: Simplify right side
    521,935,772.40x = 191,756,214,553,780,448
  5. Step 5: Solve for x
    x = 191,756,214,553,780,448/521,935,772.40
  6. Step 6: Final answer
    x = 367,394,274.72

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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.