Home / 13,268,678.65-18,316,426.32-8,920,287

Finding the Fourth Proportional to 13,268,678.65, 18,316,426.32 and 8,920,287

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Solution

The fourth proportional to 13,268,678.65, 18,316,426.32 and 8,920,287 is: 12,313,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,678.65 : 18,316,426.32 = 8,920,287 : x
  2. Step 2: Convert to fraction form
    13,268,678.65/18,316,426.32 = 8,920,287/x
  3. Step 3: Cross multiply
    13,268,678.65x = 18,316,426.32 × 8,920,287
  4. Step 4: Simplify right side
    13,268,678.65x = 163,387,779,588,753.84
  5. Step 5: Solve for x
    x = 163,387,779,588,753.84/13,268,678.65
  6. Step 6: Final answer
    x = 12,313,794.31

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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.