Home / 100,878,104-139,211,939.04-57,418,040

Finding the Fourth Proportional to 100,878,104, 139,211,939.04 and 57,418,040

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Solution

The fourth proportional to 100,878,104, 139,211,939.04 and 57,418,040 is: 79,236,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,878,104 : 139,211,939.04 = 57,418,040 : x
  2. Step 2: Convert to fraction form
    100,878,104/139,211,939.04 = 57,418,040/x
  3. Step 3: Cross multiply
    100,878,104x = 139,211,939.04 × 57,418,040
  4. Step 4: Simplify right side
    100,878,104x = 7,993,276,684,276,281
  5. Step 5: Solve for x
    x = 7,993,276,684,276,281/100,878,104
  6. Step 6: Final answer
    x = 79,236,983.72

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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.