Home / 21,129,036.90-31,700,357.73-9,618,622.62

Finding the Fourth Proportional to 21,129,036.90, 31,700,357.73 and 9,618,622.62

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Solution

The fourth proportional to 21,129,036.90, 31,700,357.73 and 9,618,622.62 is: 14,431,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,129,036.90 : 31,700,357.73 = 9,618,622.62 : x
  2. Step 2: Convert to fraction form
    21,129,036.90/31,700,357.73 = 9,618,622.62/x
  3. Step 3: Cross multiply
    21,129,036.90x = 31,700,357.73 × 9,618,622.62
  4. Step 4: Simplify right side
    21,129,036.90x = 304,913,777,923,869.81
  5. Step 5: Solve for x
    x = 304,913,777,923,869.81/21,129,036.90
  6. Step 6: Final answer
    x = 14,431,030.59

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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.