Home / 90,288,813.60-124,606,247.28-51,137,555.28

Finding the Fourth Proportional to 90,288,813.60, 124,606,247.28 and 51,137,555.28

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Solution

The fourth proportional to 90,288,813.60, 124,606,247.28 and 51,137,555.28 is: 70,574,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,813.60 : 124,606,247.28 = 51,137,555.28 : x
  2. Step 2: Convert to fraction form
    90,288,813.60/124,606,247.28 = 51,137,555.28/x
  3. Step 3: Cross multiply
    90,288,813.60x = 124,606,247.28 × 51,137,555.28
  4. Step 4: Simplify right side
    90,288,813.60x = 6,372,058,858,514,350
  5. Step 5: Solve for x
    x = 6,372,058,858,514,350/90,288,813.60
  6. Step 6: Final answer
    x = 70,574,178.62

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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.