Home / 55,161,979.80-82,742,969.70-49,209,840.60

Finding the Fourth Proportional to 55,161,979.80, 82,742,969.70 and 49,209,840.60

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Solution

The fourth proportional to 55,161,979.80, 82,742,969.70 and 49,209,840.60 is: 73,814,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161,979.80 : 82,742,969.70 = 49,209,840.60 : x
  2. Step 2: Convert to fraction form
    55,161,979.80/82,742,969.70 = 49,209,840.60/x
  3. Step 3: Cross multiply
    55,161,979.80x = 82,742,969.70 × 49,209,840.60
  4. Step 4: Simplify right side
    55,161,979.80x = 4,071,768,349,707,630
  5. Step 5: Solve for x
    x = 4,071,768,349,707,630/55,161,979.80
  6. Step 6: Final answer
    x = 73,814,760.90

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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.