Home / 13,168,390.16-18,173,084.40-7,366,825.92

Finding the Fourth Proportional to 13,168,390.16, 18,173,084.40 and 7,366,825.92

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Solution

The fourth proportional to 13,168,390.16, 18,173,084.40 and 7,366,825.92 is: 10,166,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,390.16 : 18,173,084.40 = 7,366,825.92 : x
  2. Step 2: Convert to fraction form
    13,168,390.16/18,173,084.40 = 7,366,825.92/x
  3. Step 3: Cross multiply
    13,168,390.16x = 18,173,084.40 × 7,366,825.92
  4. Step 4: Simplify right side
    13,168,390.16x = 133,877,949,204,267.64
  5. Step 5: Solve for x
    x = 133,877,949,204,267.64/13,168,390.16
  6. Step 6: Final answer
    x = 10,166,614.72

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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.