Home / 57,004,404.95-78,663,971.31-30,898,362.26

Finding the Fourth Proportional to 57,004,404.95, 78,663,971.31 and 30,898,362.26

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Solution

The fourth proportional to 57,004,404.95, 78,663,971.31 and 30,898,362.26 is: 42,638,597.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,404.95 : 78,663,971.31 = 30,898,362.26 : x
  2. Step 2: Convert to fraction form
    57,004,404.95/78,663,971.31 = 30,898,362.26/x
  3. Step 3: Cross multiply
    57,004,404.95x = 78,663,971.31 × 30,898,362.26
  4. Step 4: Simplify right side
    57,004,404.95x = 2,430,587,882,427,418
  5. Step 5: Solve for x
    x = 2,430,587,882,427,418/57,004,404.95
  6. Step 6: Final answer
    x = 42,638,597.57

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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.