Home / 7,279,289.60-10,918,934.40-7,184,811.20

Finding the Fourth Proportional to 7,279,289.60, 10,918,934.40 and 7,184,811.20

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Solution

The fourth proportional to 7,279,289.60, 10,918,934.40 and 7,184,811.20 is: 10,777,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279,289.60 : 10,918,934.40 = 7,184,811.20 : x
  2. Step 2: Convert to fraction form
    7,279,289.60/10,918,934.40 = 7,184,811.20/x
  3. Step 3: Cross multiply
    7,279,289.60x = 10,918,934.40 × 7,184,811.20
  4. Step 4: Simplify right side
    7,279,289.60x = 78,450,482,169,185.28
  5. Step 5: Solve for x
    x = 78,450,482,169,185.28/7,279,289.60
  6. Step 6: Final answer
    x = 10,777,216.80

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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.