Home / 90,318,123.86-124,629,015.08-50,083,108.15

Finding the Fourth Proportional to 90,318,123.86, 124,629,015.08 and 50,083,108.15

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Solution

The fourth proportional to 90,318,123.86, 124,629,015.08 and 50,083,108.15 is: 69,109,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318,123.86 : 124,629,015.08 = 50,083,108.15 : x
  2. Step 2: Convert to fraction form
    90,318,123.86/124,629,015.08 = 50,083,108.15/x
  3. Step 3: Cross multiply
    90,318,123.86x = 124,629,015.08 × 50,083,108.15
  4. Step 4: Simplify right side
    90,318,123.86x = 6,241,808,440,879,621
  5. Step 5: Solve for x
    x = 6,241,808,440,879,621/90,318,123.86
  6. Step 6: Final answer
    x = 69,109,146.36

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1.5x scale

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.