Home / 115,161,791.78-172,742,688.47-38,484,820.10

Finding the Fourth Proportional to 115,161,791.78, 172,742,688.47 and 38,484,820.10

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Solution

The fourth proportional to 115,161,791.78, 172,742,688.47 and 38,484,820.10 is: 57,727,230.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,161,791.78 : 172,742,688.47 = 38,484,820.10 : x
  2. Step 2: Convert to fraction form
    115,161,791.78/172,742,688.47 = 38,484,820.10/x
  3. Step 3: Cross multiply
    115,161,791.78x = 172,742,688.47 × 38,484,820.10
  4. Step 4: Simplify right side
    115,161,791.78x = 6,647,971,288,590,793
  5. Step 5: Solve for x
    x = 6,647,971,288,590,793/115,161,791.78
  6. Step 6: Final answer
    x = 57,727,230.41

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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.