Home / 8,210,005.10-12,315,007.65-3,958,477.10

Finding the Fourth Proportional to 8,210,005.10, 12,315,007.65 and 3,958,477.10

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Solution

The fourth proportional to 8,210,005.10, 12,315,007.65 and 3,958,477.10 is: 5,937,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,005.10 : 12,315,007.65 = 3,958,477.10 : x
  2. Step 2: Convert to fraction form
    8,210,005.10/12,315,007.65 = 3,958,477.10/x
  3. Step 3: Cross multiply
    8,210,005.10x = 12,315,007.65 × 3,958,477.10
  4. Step 4: Simplify right side
    8,210,005.10x = 48,748,675,768,849.82
  5. Step 5: Solve for x
    x = 48,748,675,768,849.82/8,210,005.10
  6. Step 6: Final answer
    x = 5,937,715.65

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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.