Home / 100,152,288.11-138,210,969.32-55,499,006.22

Finding the Fourth Proportional to 100,152,288.11, 138,210,969.32 and 55,499,006.22

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Solution

The fourth proportional to 100,152,288.11, 138,210,969.32 and 55,499,006.22 is: 76,589,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,152,288.11 : 138,210,969.32 = 55,499,006.22 : x
  2. Step 2: Convert to fraction form
    100,152,288.11/138,210,969.32 = 55,499,006.22/x
  3. Step 3: Cross multiply
    100,152,288.11x = 138,210,969.32 × 55,499,006.22
  4. Step 4: Simplify right side
    100,152,288.11x = 7,670,571,445,685,414
  5. Step 5: Solve for x
    x = 7,670,571,445,685,414/100,152,288.11
  6. Step 6: Final answer
    x = 76,589,078.40

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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.