Home / 100,433,530.74-138,597,715.38-56,380,517.91

Finding the Fourth Proportional to 100,433,530.74, 138,597,715.38 and 56,380,517.91

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Solution

The fourth proportional to 100,433,530.74, 138,597,715.38 and 56,380,517.91 is: 77,804,802.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,433,530.74 : 138,597,715.38 = 56,380,517.91 : x
  2. Step 2: Convert to fraction form
    100,433,530.74/138,597,715.38 = 56,380,517.91/x
  3. Step 3: Cross multiply
    100,433,530.74x = 138,597,715.38 × 56,380,517.91
  4. Step 4: Simplify right side
    100,433,530.74x = 7,814,210,974,267,172
  5. Step 5: Solve for x
    x = 7,814,210,974,267,172/100,433,530.74
  6. Step 6: Final answer
    x = 77,804,802.01

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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.