Home / 9,989,555.23-13,785,585.78-5,405,876.74

Finding the Fourth Proportional to 9,989,555.23, 13,785,585.78 and 5,405,876.74

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Solution

The fourth proportional to 9,989,555.23, 13,785,585.78 and 5,405,876.74 is: 7,460,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,555.23 : 13,785,585.78 = 5,405,876.74 : x
  2. Step 2: Convert to fraction form
    9,989,555.23/13,785,585.78 = 5,405,876.74/x
  3. Step 3: Cross multiply
    9,989,555.23x = 13,785,585.78 × 5,405,876.74
  4. Step 4: Simplify right side
    9,989,555.23x = 74,523,177,515,376.75
  5. Step 5: Solve for x
    x = 74,523,177,515,376.75/9,989,555.23
  6. Step 6: Final answer
    x = 7,460,109.66

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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.