Home / 21,216,813,541.65-31,819,791,937.91-6,290,488,809.27

Finding the Fourth Proportional to 21,216,813,541.65, 31,819,791,937.91 and 6,290,488,809.27

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Solution

The fourth proportional to 21,216,813,541.65, 31,819,791,937.91 and 6,290,488,809.27 is: 9,434,123,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,813,541.65 : 31,819,791,937.91 = 6,290,488,809.27 : x
  2. Step 2: Convert to fraction form
    21,216,813,541.65/31,819,791,937.91 = 6,290,488,809.27/x
  3. Step 3: Cross multiply
    21,216,813,541.65x = 31,819,791,937.91 × 6,290,488,809.27
  4. Step 4: Simplify right side
    21,216,813,541.65x = 200,162,045,098,691,166,208
  5. Step 5: Solve for x
    x = 200,162,045,098,691,166,208/21,216,813,541.65
  6. Step 6: Final answer
    x = 9,434,123,776.68

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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.