Home / 12,596,641.80-18,894,962.70-8,113,979.40

Finding the Fourth Proportional to 12,596,641.80, 18,894,962.70 and 8,113,979.40

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Solution

The fourth proportional to 12,596,641.80, 18,894,962.70 and 8,113,979.40 is: 12,170,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,596,641.80 : 18,894,962.70 = 8,113,979.40 : x
  2. Step 2: Convert to fraction form
    12,596,641.80/18,894,962.70 = 8,113,979.40/x
  3. Step 3: Cross multiply
    12,596,641.80x = 18,894,962.70 × 8,113,979.40
  4. Step 4: Simplify right side
    12,596,641.80x = 153,313,338,111,568.38
  5. Step 5: Solve for x
    x = 153,313,338,111,568.38/12,596,641.80
  6. Step 6: Final answer
    x = 12,170,969.10

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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.