Home / 15,765,456.47-21,756,962.73-8,796,742.71

Finding the Fourth Proportional to 15,765,456.47, 21,756,962.73 and 8,796,742.71

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Solution

The fourth proportional to 15,765,456.47, 21,756,962.73 and 8,796,742.71 is: 12,139,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765,456.47 : 21,756,962.73 = 8,796,742.71 : x
  2. Step 2: Convert to fraction form
    15,765,456.47/21,756,962.73 = 8,796,742.71/x
  3. Step 3: Cross multiply
    15,765,456.47x = 21,756,962.73 × 8,796,742.71
  4. Step 4: Simplify right side
    15,765,456.47x = 191,390,403,311,160.78
  5. Step 5: Solve for x
    x = 191,390,403,311,160.78/15,765,456.47
  6. Step 6: Final answer
    x = 12,139,858.03

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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.