Home / 38,799,005.42-53,543,920.05-21,158,870.45

Finding the Fourth Proportional to 38,799,005.42, 53,543,920.05 and 21,158,870.45

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Solution

The fourth proportional to 38,799,005.42, 53,543,920.05 and 21,158,870.45 is: 29,199,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799,005.42 : 53,543,920.05 = 21,158,870.45 : x
  2. Step 2: Convert to fraction form
    38,799,005.42/53,543,920.05 = 21,158,870.45/x
  3. Step 3: Cross multiply
    38,799,005.42x = 53,543,920.05 × 21,158,870.45
  4. Step 4: Simplify right side
    38,799,005.42x = 1,132,928,867,534,733.75
  5. Step 5: Solve for x
    x = 1,132,928,867,534,733.75/38,799,005.42
  6. Step 6: Final answer
    x = 29,199,946.11

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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.