Home / 10,015,148.80-13,820,739.78-5,664,071.80

Finding the Fourth Proportional to 10,015,148.80, 13,820,739.78 and 5,664,071.80

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Solution

The fourth proportional to 10,015,148.80, 13,820,739.78 and 5,664,071.80 is: 7,816,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015,148.80 : 13,820,739.78 = 5,664,071.80 : x
  2. Step 2: Convert to fraction form
    10,015,148.80/13,820,739.78 = 5,664,071.80/x
  3. Step 3: Cross multiply
    10,015,148.80x = 13,820,739.78 × 5,664,071.80
  4. Step 4: Simplify right side
    10,015,148.80x = 78,281,662,443,036.20
  5. Step 5: Solve for x
    x = 78,281,662,443,036.20/10,015,148.80
  6. Step 6: Final answer
    x = 7,816,325.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.