Home / 20,997,076.32-31,492,624.32-6,618,275.28

Finding the Fourth Proportional to 20,997,076.32, 31,492,624.32 and 6,618,275.28

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Solution

The fourth proportional to 20,997,076.32, 31,492,624.32 and 6,618,275.28 is: 9,926,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,076.32 : 31,492,624.32 = 6,618,275.28 : x
  2. Step 2: Convert to fraction form
    20,997,076.32/31,492,624.32 = 6,618,275.28/x
  3. Step 3: Cross multiply
    20,997,076.32x = 31,492,624.32 × 6,618,275.28
  4. Step 4: Simplify right side
    20,997,076.32x = 208,426,857,039,382.81
  5. Step 5: Solve for x
    x = 208,426,857,039,382.81/20,997,076.32
  6. Step 6: Final answer
    x = 9,926,470.42

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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.