Home / 21,526,865.17-29,710,481.80-12,830,082.32

Finding the Fourth Proportional to 21,526,865.17, 29,710,481.80 and 12,830,082.32

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Solution

The fourth proportional to 21,526,865.17, 29,710,481.80 and 12,830,082.32 is: 17,707,544.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526,865.17 : 29,710,481.80 = 12,830,082.32 : x
  2. Step 2: Convert to fraction form
    21,526,865.17/29,710,481.80 = 12,830,082.32/x
  3. Step 3: Cross multiply
    21,526,865.17x = 29,710,481.80 × 12,830,082.32
  4. Step 4: Simplify right side
    21,526,865.17x = 381,187,927,082,146.62
  5. Step 5: Solve for x
    x = 381,187,927,082,146.62/21,526,865.17
  6. Step 6: Final answer
    x = 17,707,544.69

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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.