Home / 155,027,637.65-213,938,023.01-85,413,018.54

Finding the Fourth Proportional to 155,027,637.65, 213,938,023.01 and 85,413,018.54

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Solution

The fourth proportional to 155,027,637.65, 213,938,023.01 and 85,413,018.54 is: 117,869,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,027,637.65 : 213,938,023.01 = 85,413,018.54 : x
  2. Step 2: Convert to fraction form
    155,027,637.65/213,938,023.01 = 85,413,018.54/x
  3. Step 3: Cross multiply
    155,027,637.65x = 213,938,023.01 × 85,413,018.54
  4. Step 4: Simplify right side
    155,027,637.65x = 18,273,092,324,815,588
  5. Step 5: Solve for x
    x = 18,273,092,324,815,588/155,027,637.65
  6. Step 6: Final answer
    x = 117,869,901.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.