Home / 13,268,747.72-18,316,521.54-8,920,356

Finding the Fourth Proportional to 13,268,747.72, 18,316,521.54 and 8,920,356

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Solution

The fourth proportional to 13,268,747.72, 18,316,521.54 and 8,920,356 is: 12,313,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,747.72 : 18,316,521.54 = 8,920,356 : x
  2. Step 2: Convert to fraction form
    13,268,747.72/18,316,521.54 = 8,920,356/x
  3. Step 3: Cross multiply
    13,268,747.72x = 18,316,521.54 × 8,920,356
  4. Step 4: Simplify right side
    13,268,747.72x = 163,389,892,818,468.22
  5. Step 5: Solve for x
    x = 163,389,892,818,468.22/13,268,747.72
  6. Step 6: Final answer
    x = 12,313,889.47

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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.