Home / 12,671,144.30-17,486,547.93-7,164,400.86

Finding the Fourth Proportional to 12,671,144.30, 17,486,547.93 and 7,164,400.86

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Solution

The fourth proportional to 12,671,144.30, 17,486,547.93 and 7,164,400.86 is: 9,887,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,144.30 : 17,486,547.93 = 7,164,400.86 : x
  2. Step 2: Convert to fraction form
    12,671,144.30/17,486,547.93 = 7,164,400.86/x
  3. Step 3: Cross multiply
    12,671,144.30x = 17,486,547.93 × 7,164,400.86
  4. Step 4: Simplify right side
    12,671,144.30x = 125,280,639,028,123.22
  5. Step 5: Solve for x
    x = 125,280,639,028,123.22/12,671,144.30
  6. Step 6: Final answer
    x = 9,887,081.71

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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.