Home / 7,143,864,541.56-9,858,481,434.54-3,972,023,886.96

Finding the Fourth Proportional to 7,143,864,541.56, 9,858,481,434.54 and 3,972,023,886.96

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Solution

The fourth proportional to 7,143,864,541.56, 9,858,481,434.54 and 3,972,023,886.96 is: 5,481,364,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,864,541.56 : 9,858,481,434.54 = 3,972,023,886.96 : x
  2. Step 2: Convert to fraction form
    7,143,864,541.56/9,858,481,434.54 = 3,972,023,886.96/x
  3. Step 3: Cross multiply
    7,143,864,541.56x = 9,858,481,434.54 × 3,972,023,886.96
  4. Step 4: Simplify right side
    7,143,864,541.56x = 39,158,123,747,144,572,928
  5. Step 5: Solve for x
    x = 39,158,123,747,144,572,928/7,143,864,541.56
  6. Step 6: Final answer
    x = 5,481,364,255.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.