Home / 20,748,009.02-31,123,508.36-7,968,513.69

Finding the Fourth Proportional to 20,748,009.02, 31,123,508.36 and 7,968,513.69

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Solution

The fourth proportional to 20,748,009.02, 31,123,508.36 and 7,968,513.69 is: 11,953,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748,009.02 : 31,123,508.36 = 7,968,513.69 : x
  2. Step 2: Convert to fraction form
    20,748,009.02/31,123,508.36 = 7,968,513.69/x
  3. Step 3: Cross multiply
    20,748,009.02x = 31,123,508.36 × 7,968,513.69
  4. Step 4: Simplify right side
    20,748,009.02x = 248,008,102,407,646.91
  5. Step 5: Solve for x
    x = 248,008,102,407,646.91/20,748,009.02
  6. Step 6: Final answer
    x = 11,953,344.64

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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.