Home / 140,248,100.91-210,372,153.19-38,012,138.54

Finding the Fourth Proportional to 140,248,100.91, 210,372,153.19 and 38,012,138.54

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Solution

The fourth proportional to 140,248,100.91, 210,372,153.19 and 38,012,138.54 is: 57,018,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,248,100.91 : 210,372,153.19 = 38,012,138.54 : x
  2. Step 2: Convert to fraction form
    140,248,100.91/210,372,153.19 = 38,012,138.54/x
  3. Step 3: Cross multiply
    140,248,100.91x = 210,372,153.19 × 38,012,138.54
  4. Step 4: Simplify right side
    140,248,100.91x = 7,996,695,430,964,521
  5. Step 5: Solve for x
    x = 7,996,695,430,964,521/140,248,100.91
  6. Step 6: Final answer
    x = 57,018,208.30

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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.