Home / 5,343,990.80-8,008,987.80-4,742,128.40

Finding the Fourth Proportional to 5,343,990.80, 8,008,987.80 and 4,742,128.40

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Solution

The fourth proportional to 5,343,990.80, 8,008,987.80 and 4,742,128.40 is: 7,106,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343,990.80 : 8,008,987.80 = 4,742,128.40 : x
  2. Step 2: Convert to fraction form
    5,343,990.80/8,008,987.80 = 4,742,128.40/x
  3. Step 3: Cross multiply
    5,343,990.80x = 8,008,987.80 × 4,742,128.40
  4. Step 4: Simplify right side
    5,343,990.80x = 37,979,648,501,633.52
  5. Step 5: Solve for x
    x = 37,979,648,501,633.52/5,343,990.80
  6. Step 6: Final answer
    x = 7,106,982.39

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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.