Home / 66,688,816.08-100,019,227.32-18,808,562.64

Finding the Fourth Proportional to 66,688,816.08, 100,019,227.32 and 18,808,562.64

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Solution

The fourth proportional to 66,688,816.08, 100,019,227.32 and 18,808,562.64 is: 28,208,896.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,688,816.08 : 100,019,227.32 = 18,808,562.64 : x
  2. Step 2: Convert to fraction form
    66,688,816.08/100,019,227.32 = 18,808,562.64/x
  3. Step 3: Cross multiply
    66,688,816.08x = 100,019,227.32 × 18,808,562.64
  4. Step 4: Simplify right side
    66,688,816.08x = 1,881,217,902,252,619.25
  5. Step 5: Solve for x
    x = 1,881,217,902,252,619.25/66,688,816.08
  6. Step 6: Final answer
    x = 28,208,896.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.