Home / 15,886,707.24-21,921,901.56-8,915,785.89

Finding the Fourth Proportional to 15,886,707.24, 21,921,901.56 and 8,915,785.89

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Solution

The fourth proportional to 15,886,707.24, 21,921,901.56 and 8,915,785.89 is: 12,302,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,707.24 : 21,921,901.56 = 8,915,785.89 : x
  2. Step 2: Convert to fraction form
    15,886,707.24/21,921,901.56 = 8,915,785.89/x
  3. Step 3: Cross multiply
    15,886,707.24x = 21,921,901.56 × 8,915,785.89
  4. Step 4: Simplify right side
    15,886,707.24x = 195,450,980,610,617
  5. Step 5: Solve for x
    x = 195,450,980,610,617/15,886,707.24
  6. Step 6: Final answer
    x = 12,302,799.92

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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.