Home / 13,386,638-20,152,794.74-12,196,210.16

Finding the Fourth Proportional to 13,386,638, 20,152,794.74 and 12,196,210.16

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Solution

The fourth proportional to 13,386,638, 20,152,794.74 and 12,196,210.16 is: 18,360,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386,638 : 20,152,794.74 = 12,196,210.16 : x
  2. Step 2: Convert to fraction form
    13,386,638/20,152,794.74 = 12,196,210.16/x
  3. Step 3: Cross multiply
    13,386,638x = 20,152,794.74 × 12,196,210.16
  4. Step 4: Simplify right side
    13,386,638x = 245,787,719,960,382.53
  5. Step 5: Solve for x
    x = 245,787,719,960,382.53/13,386,638
  6. Step 6: Final answer
    x = 18,360,675.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.