Home / 8,208,005.70-12,312,008.55-5,184,696.90

Finding the Fourth Proportional to 8,208,005.70, 12,312,008.55 and 5,184,696.90

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Solution

The fourth proportional to 8,208,005.70, 12,312,008.55 and 5,184,696.90 is: 7,777,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208,005.70 : 12,312,008.55 = 5,184,696.90 : x
  2. Step 2: Convert to fraction form
    8,208,005.70/12,312,008.55 = 5,184,696.90/x
  3. Step 3: Cross multiply
    8,208,005.70x = 12,312,008.55 × 5,184,696.90
  4. Step 4: Simplify right side
    8,208,005.70x = 63,834,032,561,958.50
  5. Step 5: Solve for x
    x = 63,834,032,561,958.50/8,208,005.70
  6. Step 6: Final answer
    x = 7,777,045.35

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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.