Home / 221,080,492.80-331,521,206.40-99,849,542.40

Finding the Fourth Proportional to 221,080,492.80, 331,521,206.40 and 99,849,542.40

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Solution

The fourth proportional to 221,080,492.80, 331,521,206.40 and 99,849,542.40 is: 149,729,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,080,492.80 : 331,521,206.40 = 99,849,542.40 : x
  2. Step 2: Convert to fraction form
    221,080,492.80/331,521,206.40 = 99,849,542.40/x
  3. Step 3: Cross multiply
    221,080,492.80x = 331,521,206.40 × 99,849,542.40
  4. Step 4: Simplify right side
    221,080,492.80x = 33,102,240,754,935,952
  5. Step 5: Solve for x
    x = 33,102,240,754,935,952/221,080,492.80
  6. Step 6: Final answer
    x = 149,729,360.27

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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.