Home / 21,117,139.82-29,141,652.95-11,459,347.82

Finding the Fourth Proportional to 21,117,139.82, 29,141,652.95 and 11,459,347.82

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Solution

The fourth proportional to 21,117,139.82, 29,141,652.95 and 11,459,347.82 is: 15,813,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,139.82 : 29,141,652.95 = 11,459,347.82 : x
  2. Step 2: Convert to fraction form
    21,117,139.82/29,141,652.95 = 11,459,347.82/x
  3. Step 3: Cross multiply
    21,117,139.82x = 29,141,652.95 × 11,459,347.82
  4. Step 4: Simplify right side
    21,117,139.82x = 333,944,337,000,774.06
  5. Step 5: Solve for x
    x = 333,944,337,000,774.06/21,117,139.82
  6. Step 6: Final answer
    x = 15,813,899.98

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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.