Home / 228,409,899.32-315,206,061-123,988,041.56

Finding the Fourth Proportional to 228,409,899.32, 315,206,061 and 123,988,041.56

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Solution

The fourth proportional to 228,409,899.32, 315,206,061 and 123,988,041.56 is: 171,103,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,409,899.32 : 315,206,061 = 123,988,041.56 : x
  2. Step 2: Convert to fraction form
    228,409,899.32/315,206,061 = 123,988,041.56/x
  3. Step 3: Cross multiply
    228,409,899.32x = 315,206,061 × 123,988,041.56
  4. Step 4: Simplify right side
    228,409,899.32x = 39,081,782,191,231,896
  5. Step 5: Solve for x
    x = 39,081,782,191,231,896/228,409,899.32
  6. Step 6: Final answer
    x = 171,103,714.45

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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.