Home / 31,639,189.74-47,381,392.13-28,572,111.78

Finding the Fourth Proportional to 31,639,189.74, 47,381,392.13 and 28,572,111.78

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Solution

The fourth proportional to 31,639,189.74, 47,381,392.13 and 28,572,111.78 is: 42,788,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639,189.74 : 47,381,392.13 = 28,572,111.78 : x
  2. Step 2: Convert to fraction form
    31,639,189.74/47,381,392.13 = 28,572,111.78/x
  3. Step 3: Cross multiply
    31,639,189.74x = 47,381,392.13 × 28,572,111.78
  4. Step 4: Simplify right side
    31,639,189.74x = 1,353,786,432,301,802.75
  5. Step 5: Solve for x
    x = 1,353,786,432,301,802.75/31,639,189.74
  6. Step 6: Final answer
    x = 42,788,277.56

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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.