Home / 21,020,256.84-29,017,719.54-12,317,221.56

Finding the Fourth Proportional to 21,020,256.84, 29,017,719.54 and 12,317,221.56

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Solution

The fourth proportional to 21,020,256.84, 29,017,719.54 and 12,317,221.56 is: 17,003,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,256.84 : 29,017,719.54 = 12,317,221.56 : x
  2. Step 2: Convert to fraction form
    21,020,256.84/29,017,719.54 = 12,317,221.56/x
  3. Step 3: Cross multiply
    21,020,256.84x = 29,017,719.54 × 12,317,221.56
  4. Step 4: Simplify right side
    21,020,256.84x = 357,417,680,740,121.31
  5. Step 5: Solve for x
    x = 357,417,680,740,121.31/21,020,256.84
  6. Step 6: Final answer
    x = 17,003,487.80

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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.