Home / 163,739,973.88-225,958,075.17-100,155,634.78

Finding the Fourth Proportional to 163,739,973.88, 225,958,075.17 and 100,155,634.78

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Solution

The fourth proportional to 163,739,973.88, 225,958,075.17 and 100,155,634.78 is: 138,212,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,739,973.88 : 225,958,075.17 = 100,155,634.78 : x
  2. Step 2: Convert to fraction form
    163,739,973.88/225,958,075.17 = 100,155,634.78/x
  3. Step 3: Cross multiply
    163,739,973.88x = 225,958,075.17 × 100,155,634.78
  4. Step 4: Simplify right side
    163,739,973.88x = 22,630,974,452,318,304
  5. Step 5: Solve for x
    x = 22,630,974,452,318,304/163,739,973.88
  6. Step 6: Final answer
    x = 138,212,886.66

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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.