Home / 7,776,005.60-11,664,008.40-4,939,320.80

Finding the Fourth Proportional to 7,776,005.60, 11,664,008.40 and 4,939,320.80

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Solution

The fourth proportional to 7,776,005.60, 11,664,008.40 and 4,939,320.80 is: 7,408,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,005.60 : 11,664,008.40 = 4,939,320.80 : x
  2. Step 2: Convert to fraction form
    7,776,005.60/11,664,008.40 = 4,939,320.80/x
  3. Step 3: Cross multiply
    7,776,005.60x = 11,664,008.40 × 4,939,320.80
  4. Step 4: Simplify right side
    7,776,005.60x = 57,612,279,301,494.72
  5. Step 5: Solve for x
    x = 57,612,279,301,494.72/7,776,005.60
  6. Step 6: Final answer
    x = 7,408,981.20

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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.