Home / 47,147,952.50-70,721,948.40-21,209,957.38

Finding the Fourth Proportional to 47,147,952.50, 70,721,948.40 and 21,209,957.38

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Solution

The fourth proportional to 47,147,952.50, 70,721,948.40 and 21,209,957.38 is: 31,814,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,147,952.50 : 70,721,948.40 = 21,209,957.38 : x
  2. Step 2: Convert to fraction form
    47,147,952.50/70,721,948.40 = 21,209,957.38/x
  3. Step 3: Cross multiply
    47,147,952.50x = 70,721,948.40 × 21,209,957.38
  4. Step 4: Simplify right side
    47,147,952.50x = 1,500,009,511,394,559.25
  5. Step 5: Solve for x
    x = 1,500,009,511,394,559.25/47,147,952.50
  6. Step 6: Final answer
    x = 31,814,944.91

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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.