Home / 20,535,248.04-28,338,977.88-11,242,663.08

Finding the Fourth Proportional to 20,535,248.04, 28,338,977.88 and 11,242,663.08

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Solution

The fourth proportional to 20,535,248.04, 28,338,977.88 and 11,242,663.08 is: 15,515,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,248.04 : 28,338,977.88 = 11,242,663.08 : x
  2. Step 2: Convert to fraction form
    20,535,248.04/28,338,977.88 = 11,242,663.08/x
  3. Step 3: Cross multiply
    20,535,248.04x = 28,338,977.88 × 11,242,663.08
  4. Step 4: Simplify right side
    20,535,248.04x = 318,605,580,336,412.69
  5. Step 5: Solve for x
    x = 318,605,580,336,412.69/20,535,248.04
  6. Step 6: Final answer
    x = 15,515,058.78

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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.