Home / 57,095,061-78,789,073.38-30,989,017.80

Finding the Fourth Proportional to 57,095,061, 78,789,073.38 and 30,989,017.80

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Solution

The fourth proportional to 57,095,061, 78,789,073.38 and 30,989,017.80 is: 42,763,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,095,061 : 78,789,073.38 = 30,989,017.80 : x
  2. Step 2: Convert to fraction form
    57,095,061/78,789,073.38 = 30,989,017.80/x
  3. Step 3: Cross multiply
    57,095,061x = 78,789,073.38 × 30,989,017.80
  4. Step 4: Simplify right side
    57,095,061x = 2,441,595,997,418,326
  5. Step 5: Solve for x
    x = 2,441,595,997,418,326/57,095,061
  6. Step 6: Final answer
    x = 42,763,698.90

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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.