Home / 101,302,805.21-139,782,411.50-57,233,724.59

Finding the Fourth Proportional to 101,302,805.21, 139,782,411.50 and 57,233,724.59

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Solution

The fourth proportional to 101,302,805.21, 139,782,411.50 and 57,233,724.59 is: 78,973,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,302,805.21 : 139,782,411.50 = 57,233,724.59 : x
  2. Step 2: Convert to fraction form
    101,302,805.21/139,782,411.50 = 57,233,724.59/x
  3. Step 3: Cross multiply
    101,302,805.21x = 139,782,411.50 × 57,233,724.59
  4. Step 4: Simplify right side
    101,302,805.21x = 8,000,268,041,761,221
  5. Step 5: Solve for x
    x = 8,000,268,041,761,221/101,302,805.21
  6. Step 6: Final answer
    x = 78,973,805.56

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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.