Home / 12,528,065.10-18,792,097.65-9,339,419.10

Finding the Fourth Proportional to 12,528,065.10, 18,792,097.65 and 9,339,419.10

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Solution

The fourth proportional to 12,528,065.10, 18,792,097.65 and 9,339,419.10 is: 14,009,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,065.10 : 18,792,097.65 = 9,339,419.10 : x
  2. Step 2: Convert to fraction form
    12,528,065.10/18,792,097.65 = 9,339,419.10/x
  3. Step 3: Cross multiply
    12,528,065.10x = 18,792,097.65 × 9,339,419.10
  4. Step 4: Simplify right side
    12,528,065.10x = 175,507,275,721,475.09
  5. Step 5: Solve for x
    x = 175,507,275,721,475.09/12,528,065.10
  6. Step 6: Final answer
    x = 14,009,128.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.