Home / 77,516,633.26-116,165,264.55-42,988,221.37

Finding the Fourth Proportional to 77,516,633.26, 116,165,264.55 and 42,988,221.37

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Solution

The fourth proportional to 77,516,633.26, 116,165,264.55 and 42,988,221.37 is: 64,421,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,516,633.26 : 116,165,264.55 = 42,988,221.37 : x
  2. Step 2: Convert to fraction form
    77,516,633.26/116,165,264.55 = 42,988,221.37/x
  3. Step 3: Cross multiply
    77,516,633.26x = 116,165,264.55 × 42,988,221.37
  4. Step 4: Simplify right side
    77,516,633.26x = 4,993,738,107,980,013
  5. Step 5: Solve for x
    x = 4,993,738,107,980,013/77,516,633.26
  6. Step 6: Final answer
    x = 64,421,504.11

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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.