Home / 100,624,649.10-138,858,799.41-56,573,511.90

Finding the Fourth Proportional to 100,624,649.10, 138,858,799.41 and 56,573,511.90

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Solution

The fourth proportional to 100,624,649.10, 138,858,799.41 and 56,573,511.90 is: 78,069,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,624,649.10 : 138,858,799.41 = 56,573,511.90 : x
  2. Step 2: Convert to fraction form
    100,624,649.10/138,858,799.41 = 56,573,511.90/x
  3. Step 3: Cross multiply
    100,624,649.10x = 138,858,799.41 × 56,573,511.90
  4. Step 4: Simplify right side
    100,624,649.10x = 7,855,729,940,841,348
  5. Step 5: Solve for x
    x = 7,855,729,940,841,348/100,624,649.10
  6. Step 6: Final answer
    x = 78,069,638.12

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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.