Home / 412,972,971.21-619,466,025.38-229,904,041.77

Finding the Fourth Proportional to 412,972,971.21, 619,466,025.38 and 229,904,041.77

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Solution

The fourth proportional to 412,972,971.21, 619,466,025.38 and 229,904,041.77 is: 344,859,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,972,971.21 : 619,466,025.38 = 229,904,041.77 : x
  2. Step 2: Convert to fraction form
    412,972,971.21/619,466,025.38 = 229,904,041.77/x
  3. Step 3: Cross multiply
    412,972,971.21x = 619,466,025.38 × 229,904,041.77
  4. Step 4: Simplify right side
    412,972,971.21x = 142,417,742,972,909,888
  5. Step 5: Solve for x
    x = 142,417,742,972,909,888/412,972,971.21
  6. Step 6: Final answer
    x = 344,859,719.40

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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.