Home / 212,544,064.80-318,816,097.20-147,710,887.20

Finding the Fourth Proportional to 212,544,064.80, 318,816,097.20 and 147,710,887.20

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Solution

The fourth proportional to 212,544,064.80, 318,816,097.20 and 147,710,887.20 is: 221,566,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,544,064.80 : 318,816,097.20 = 147,710,887.20 : x
  2. Step 2: Convert to fraction form
    212,544,064.80/318,816,097.20 = 147,710,887.20/x
  3. Step 3: Cross multiply
    212,544,064.80x = 318,816,097.20 × 147,710,887.20
  4. Step 4: Simplify right side
    212,544,064.80x = 47,092,608,571,053,432
  5. Step 5: Solve for x
    x = 47,092,608,571,053,432/212,544,064.80
  6. Step 6: Final answer
    x = 221,566,330.80

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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.