Home / 57,097,013.16-78,792,627.78-30,991,581.48

Finding the Fourth Proportional to 57,097,013.16, 78,792,627.78 and 30,991,581.48

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Solution

The fourth proportional to 57,097,013.16, 78,792,627.78 and 30,991,581.48 is: 42,767,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,097,013.16 : 78,792,627.78 = 30,991,581.48 : x
  2. Step 2: Convert to fraction form
    57,097,013.16/78,792,627.78 = 30,991,581.48/x
  3. Step 3: Cross multiply
    57,097,013.16x = 78,792,627.78 × 30,991,581.48
  4. Step 4: Simplify right side
    57,097,013.16x = 2,441,908,143,867,181.50
  5. Step 5: Solve for x
    x = 2,441,908,143,867,181.50/57,097,013.16
  6. Step 6: Final answer
    x = 42,767,703.75

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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.