Home / 18,190,905.44-25,103,390.10-9,931,069.40

Finding the Fourth Proportional to 18,190,905.44, 25,103,390.10 and 9,931,069.40

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Solution

The fourth proportional to 18,190,905.44, 25,103,390.10 and 9,931,069.40 is: 13,704,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,905.44 : 25,103,390.10 = 9,931,069.40 : x
  2. Step 2: Convert to fraction form
    18,190,905.44/25,103,390.10 = 9,931,069.40/x
  3. Step 3: Cross multiply
    18,190,905.44x = 25,103,390.10 × 9,931,069.40
  4. Step 4: Simplify right side
    18,190,905.44x = 249,303,509,258,372.97
  5. Step 5: Solve for x
    x = 249,303,509,258,372.97/18,190,905.44
  6. Step 6: Final answer
    x = 13,704,843.34

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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.