Home / 2,688,078.10-4,032,117.15-2,221,518.10

Finding the Fourth Proportional to 2,688,078.10, 4,032,117.15 and 2,221,518.10

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Solution

The fourth proportional to 2,688,078.10, 4,032,117.15 and 2,221,518.10 is: 3,332,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,078.10 : 4,032,117.15 = 2,221,518.10 : x
  2. Step 2: Convert to fraction form
    2,688,078.10/4,032,117.15 = 2,221,518.10/x
  3. Step 3: Cross multiply
    2,688,078.10x = 4,032,117.15 × 2,221,518.10
  4. Step 4: Simplify right side
    2,688,078.10x = 8,957,421,230,045.42
  5. Step 5: Solve for x
    x = 8,957,421,230,045.42/2,688,078.10
  6. Step 6: Final answer
    x = 3,332,277.15

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Double scale
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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.