Home / 15,054,268.60-20,774,779.86-8,178,807.16

Finding the Fourth Proportional to 15,054,268.60, 20,774,779.86 and 8,178,807.16

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Solution

The fourth proportional to 15,054,268.60, 20,774,779.86 and 8,178,807.16 is: 11,286,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054,268.60 : 20,774,779.86 = 8,178,807.16 : x
  2. Step 2: Convert to fraction form
    15,054,268.60/20,774,779.86 = 8,178,807.16/x
  3. Step 3: Cross multiply
    15,054,268.60x = 20,774,779.86 × 8,178,807.16
  4. Step 4: Simplify right side
    15,054,268.60x = 169,912,918,266,391.78
  5. Step 5: Solve for x
    x = 169,912,918,266,391.78/15,054,268.60
  6. Step 6: Final answer
    x = 11,286,693.68

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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.