Home / 20,501,122.65-30,756,349.58-11,977,071.45

Finding the Fourth Proportional to 20,501,122.65, 30,756,349.58 and 11,977,071.45

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Solution

The fourth proportional to 20,501,122.65, 30,756,349.58 and 11,977,071.45 is: 17,968,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,122.65 : 30,756,349.58 = 11,977,071.45 : x
  2. Step 2: Convert to fraction form
    20,501,122.65/30,756,349.58 = 11,977,071.45/x
  3. Step 3: Cross multiply
    20,501,122.65x = 30,756,349.58 × 11,977,071.45
  4. Step 4: Simplify right side
    20,501,122.65x = 368,370,996,400,952.12
  5. Step 5: Solve for x
    x = 368,370,996,400,952.12/20,501,122.65
  6. Step 6: Final answer
    x = 17,968,332.89

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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.