Home / 13,280,444.31-18,326,529.27-7,399,774.62

Finding the Fourth Proportional to 13,280,444.31, 18,326,529.27 and 7,399,774.62

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Solution

The fourth proportional to 13,280,444.31, 18,326,529.27 and 7,399,774.62 is: 10,211,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,444.31 : 18,326,529.27 = 7,399,774.62 : x
  2. Step 2: Convert to fraction form
    13,280,444.31/18,326,529.27 = 7,399,774.62/x
  3. Step 3: Cross multiply
    13,280,444.31x = 18,326,529.27 × 7,399,774.62
  4. Step 4: Simplify right side
    13,280,444.31x = 135,612,186,164,833.12
  5. Step 5: Solve for x
    x = 135,612,186,164,833.12/13,280,444.31
  6. Step 6: Final answer
    x = 10,211,419.36

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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.