Home / 21,193,293,856.90-31,789,940,785.35-6,471,291,655.30

Finding the Fourth Proportional to 21,193,293,856.90, 31,789,940,785.35 and 6,471,291,655.30

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Solution

The fourth proportional to 21,193,293,856.90, 31,789,940,785.35 and 6,471,291,655.30 is: 9,706,937,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,293,856.90 : 31,789,940,785.35 = 6,471,291,655.30 : x
  2. Step 2: Convert to fraction form
    21,193,293,856.90/31,789,940,785.35 = 6,471,291,655.30/x
  3. Step 3: Cross multiply
    21,193,293,856.90x = 31,789,940,785.35 × 6,471,291,655.30
  4. Step 4: Simplify right side
    21,193,293,856.90x = 205,721,978,526,716,592,128
  5. Step 5: Solve for x
    x = 205,721,978,526,716,592,128/21,193,293,856.90
  6. Step 6: Final answer
    x = 9,706,937,482.95

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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.