Home / 20,130,508.96-27,780,888.81-11,429,491.12

Finding the Fourth Proportional to 20,130,508.96, 27,780,888.81 and 11,429,491.12

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Solution

The fourth proportional to 20,130,508.96, 27,780,888.81 and 11,429,491.12 is: 15,773,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,508.96 : 27,780,888.81 = 11,429,491.12 : x
  2. Step 2: Convert to fraction form
    20,130,508.96/27,780,888.81 = 11,429,491.12/x
  3. Step 3: Cross multiply
    20,130,508.96x = 27,780,888.81 × 11,429,491.12
  4. Step 4: Simplify right side
    20,130,508.96x = 317,521,421,959,602.31
  5. Step 5: Solve for x
    x = 317,521,421,959,602.31/20,130,508.96
  6. Step 6: Final answer
    x = 15,773,144.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.