Home / 100,878,288-139,212,192.96-57,418,224

Finding the Fourth Proportional to 100,878,288, 139,212,192.96 and 57,418,224

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Solution

The fourth proportional to 100,878,288, 139,212,192.96 and 57,418,224 is: 79,237,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,878,288 : 139,212,192.96 = 57,418,224 : x
  2. Step 2: Convert to fraction form
    100,878,288/139,212,192.96 = 57,418,224/x
  3. Step 3: Cross multiply
    100,878,288x = 139,212,192.96 × 57,418,224
  4. Step 4: Simplify right side
    100,878,288x = 7,993,316,878,908,504
  5. Step 5: Solve for x
    x = 7,993,316,878,908,504/100,878,288
  6. Step 6: Final answer
    x = 79,237,237.64

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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.