Home / 21,117,610.85-31,681,081.87-7,654,088.93

Finding the Fourth Proportional to 21,117,610.85, 31,681,081.87 and 7,654,088.93

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Solution

The fourth proportional to 21,117,610.85, 31,681,081.87 and 7,654,088.93 is: 11,482,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,610.85 : 31,681,081.87 = 7,654,088.93 : x
  2. Step 2: Convert to fraction form
    21,117,610.85/31,681,081.87 = 7,654,088.93/x
  3. Step 3: Cross multiply
    21,117,610.85x = 31,681,081.87 × 7,654,088.93
  4. Step 4: Simplify right side
    21,117,610.85x = 242,489,817,854,050.06
  5. Step 5: Solve for x
    x = 242,489,817,854,050.06/21,117,610.85
  6. Step 6: Final answer
    x = 11,482,824.44

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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.