Home / 15,664,032.15-21,617,732.25-9,139,763.49

Finding the Fourth Proportional to 15,664,032.15, 21,617,732.25 and 9,139,763.49

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Solution

The fourth proportional to 15,664,032.15, 21,617,732.25 and 9,139,763.49 is: 12,613,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664,032.15 : 21,617,732.25 = 9,139,763.49 : x
  2. Step 2: Convert to fraction form
    15,664,032.15/21,617,732.25 = 9,139,763.49/x
  3. Step 3: Cross multiply
    15,664,032.15x = 21,617,732.25 × 9,139,763.49
  4. Step 4: Simplify right side
    15,664,032.15x = 197,580,959,874,079.06
  5. Step 5: Solve for x
    x = 197,580,959,874,079.06/15,664,032.15
  6. Step 6: Final answer
    x = 12,613,671.76

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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.