Home / 57,004,403.10-78,663,968.79-30,898,360.44

Finding the Fourth Proportional to 57,004,403.10, 78,663,968.79 and 30,898,360.44

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Solution

The fourth proportional to 57,004,403.10, 78,663,968.79 and 30,898,360.44 is: 42,638,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,403.10 : 78,663,968.79 = 30,898,360.44 : x
  2. Step 2: Convert to fraction form
    57,004,403.10/78,663,968.79 = 30,898,360.44/x
  3. Step 3: Cross multiply
    57,004,403.10x = 78,663,968.79 × 30,898,360.44
  4. Step 4: Simplify right side
    57,004,403.10x = 2,430,587,661,314,331
  5. Step 5: Solve for x
    x = 2,430,587,661,314,331/57,004,403.10
  6. Step 6: Final answer
    x = 42,638,595.08

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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.