Home / 215,973,492.80-323,988,655.20-79,754,561.60

Finding the Fourth Proportional to 215,973,492.80, 323,988,655.20 and 79,754,561.60

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Solution

The fourth proportional to 215,973,492.80, 323,988,655.20 and 79,754,561.60 is: 119,642,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,973,492.80 : 323,988,655.20 = 79,754,561.60 : x
  2. Step 2: Convert to fraction form
    215,973,492.80/323,988,655.20 = 79,754,561.60/x
  3. Step 3: Cross multiply
    215,973,492.80x = 323,988,655.20 × 79,754,561.60
  4. Step 4: Simplify right side
    215,973,492.80x = 25,839,573,158,849,556
  5. Step 5: Solve for x
    x = 25,839,573,158,849,556/215,973,492.80
  6. Step 6: Final answer
    x = 119,642,335.84

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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.