Home / 18,742,765.02-28,117,982.03-6,445,131.20

Finding the Fourth Proportional to 18,742,765.02, 28,117,982.03 and 6,445,131.20

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Solution

The fourth proportional to 18,742,765.02, 28,117,982.03 and 6,445,131.20 is: 9,669,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742,765.02 : 28,117,982.03 = 6,445,131.20 : x
  2. Step 2: Convert to fraction form
    18,742,765.02/28,117,982.03 = 6,445,131.20/x
  3. Step 3: Cross multiply
    18,742,765.02x = 28,117,982.03 × 6,445,131.20
  4. Step 4: Simplify right side
    18,742,765.02x = 181,224,083,160,071.72
  5. Step 5: Solve for x
    x = 181,224,083,160,071.72/18,742,765.02
  6. Step 6: Final answer
    x = 9,669,015.38

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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.