Home / 15,774,923.20-21,769,394-8,531,579.20

Finding the Fourth Proportional to 15,774,923.20, 21,769,394 and 8,531,579.20

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Solution

The fourth proportional to 15,774,923.20, 21,769,394 and 8,531,579.20 is: 11,773,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774,923.20 : 21,769,394 = 8,531,579.20 : x
  2. Step 2: Convert to fraction form
    15,774,923.20/21,769,394 = 8,531,579.20/x
  3. Step 3: Cross multiply
    15,774,923.20x = 21,769,394 × 8,531,579.20
  4. Step 4: Simplify right side
    15,774,923.20x = 185,727,309,047,004.78
  5. Step 5: Solve for x
    x = 185,727,309,047,004.78/15,774,923.20
  6. Step 6: Final answer
    x = 11,773,579.29

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1.5x scale

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.