Home / 18,638,487.81-27,944,741.48-8,258,064.59

Finding the Fourth Proportional to 18,638,487.81, 27,944,741.48 and 8,258,064.59

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Solution

The fourth proportional to 18,638,487.81, 27,944,741.48 and 8,258,064.59 is: 12,381,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638,487.81 : 27,944,741.48 = 8,258,064.59 : x
  2. Step 2: Convert to fraction form
    18,638,487.81/27,944,741.48 = 8,258,064.59/x
  3. Step 3: Cross multiply
    18,638,487.81x = 27,944,741.48 × 8,258,064.59
  4. Step 4: Simplify right side
    18,638,487.81x = 230,769,479,911,678.19
  5. Step 5: Solve for x
    x = 230,769,479,911,678.19/18,638,487.81
  6. Step 6: Final answer
    x = 12,381,341.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.