Home / 21,870,036.60-32,805,054.90-6,721,999.80

Finding the Fourth Proportional to 21,870,036.60, 32,805,054.90 and 6,721,999.80

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Solution

The fourth proportional to 21,870,036.60, 32,805,054.90 and 6,721,999.80 is: 10,082,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,036.60 : 32,805,054.90 = 6,721,999.80 : x
  2. Step 2: Convert to fraction form
    21,870,036.60/32,805,054.90 = 6,721,999.80/x
  3. Step 3: Cross multiply
    21,870,036.60x = 32,805,054.90 × 6,721,999.80
  4. Step 4: Simplify right side
    21,870,036.60x = 220,515,572,476,789
  5. Step 5: Solve for x
    x = 220,515,572,476,789/21,870,036.60
  6. Step 6: Final answer
    x = 10,082,999.70

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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.