Home / 21,716,925.30-29,961,856.53-13,881,020.94

Finding the Fourth Proportional to 21,716,925.30, 29,961,856.53 and 13,881,020.94

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Solution

The fourth proportional to 21,716,925.30, 29,961,856.53 and 13,881,020.94 is: 19,151,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,716,925.30 : 29,961,856.53 = 13,881,020.94 : x
  2. Step 2: Convert to fraction form
    21,716,925.30/29,961,856.53 = 13,881,020.94/x
  3. Step 3: Cross multiply
    21,716,925.30x = 29,961,856.53 × 13,881,020.94
  4. Step 4: Simplify right side
    21,716,925.30x = 415,901,157,894,205.75
  5. Step 5: Solve for x
    x = 415,901,157,894,205.75/21,716,925.30
  6. Step 6: Final answer
    x = 19,151,014.80

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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.