Home / 13,280,442.87-18,326,527.32-7,399,773.21

Finding the Fourth Proportional to 13,280,442.87, 18,326,527.32 and 7,399,773.21

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Solution

The fourth proportional to 13,280,442.87, 18,326,527.32 and 7,399,773.21 is: 10,211,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,442.87 : 18,326,527.32 = 7,399,773.21 : x
  2. Step 2: Convert to fraction form
    13,280,442.87/18,326,527.32 = 7,399,773.21/x
  3. Step 3: Cross multiply
    13,280,442.87x = 18,326,527.32 × 7,399,773.21
  4. Step 4: Simplify right side
    13,280,442.87x = 135,612,145,935,844.42
  5. Step 5: Solve for x
    x = 135,612,145,935,844.42/13,280,442.87
  6. Step 6: Final answer
    x = 10,211,417.44

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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.