Home / 418,246,682.66-627,236,921.55-138,075,430.94

Finding the Fourth Proportional to 418,246,682.66, 627,236,921.55 and 138,075,430.94

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Solution

The fourth proportional to 418,246,682.66, 627,236,921.55 and 138,075,430.94 is: 207,069,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,246,682.66 : 627,236,921.55 = 138,075,430.94 : x
  2. Step 2: Convert to fraction form
    418,246,682.66/627,236,921.55 = 138,075,430.94/x
  3. Step 3: Cross multiply
    418,246,682.66x = 627,236,921.55 × 138,075,430.94
  4. Step 4: Simplify right side
    418,246,682.66x = 86,606,008,244,495,216
  5. Step 5: Solve for x
    x = 86,606,008,244,495,216/418,246,682.66
  6. Step 6: Final answer
    x = 207,069,205.41

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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.