Home / 212,909,675.80-319,364,513.70-144,885,227.80

Finding the Fourth Proportional to 212,909,675.80, 319,364,513.70 and 144,885,227.80

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Solution

The fourth proportional to 212,909,675.80, 319,364,513.70 and 144,885,227.80 is: 217,327,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,909,675.80 : 319,364,513.70 = 144,885,227.80 : x
  2. Step 2: Convert to fraction form
    212,909,675.80/319,364,513.70 = 144,885,227.80/x
  3. Step 3: Cross multiply
    212,909,675.80x = 319,364,513.70 × 144,885,227.80
  4. Step 4: Simplify right side
    212,909,675.80x = 46,271,200,318,660,720
  5. Step 5: Solve for x
    x = 46,271,200,318,660,720/212,909,675.80
  6. Step 6: Final answer
    x = 217,327,841.70

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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.