Home / 38,799,005.92-53,543,920.75-21,158,870.95

Finding the Fourth Proportional to 38,799,005.92, 53,543,920.75 and 21,158,870.95

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Solution

The fourth proportional to 38,799,005.92, 53,543,920.75 and 21,158,870.95 is: 29,199,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799,005.92 : 53,543,920.75 = 21,158,870.95 : x
  2. Step 2: Convert to fraction form
    38,799,005.92/53,543,920.75 = 21,158,870.95/x
  3. Step 3: Cross multiply
    38,799,005.92x = 53,543,920.75 × 21,158,870.95
  4. Step 4: Simplify right side
    38,799,005.92x = 1,132,928,908,932,763.25
  5. Step 5: Solve for x
    x = 1,132,928,908,932,763.25/38,799,005.92
  6. Step 6: Final answer
    x = 29,199,946.80

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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.