Home / 15,338,429.92-21,174,703.59-9,539,079.94

Finding the Fourth Proportional to 15,338,429.92, 21,174,703.59 and 9,539,079.94

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Solution

The fourth proportional to 15,338,429.92, 21,174,703.59 and 9,539,079.94 is: 13,168,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,429.92 : 21,174,703.59 = 9,539,079.94 : x
  2. Step 2: Convert to fraction form
    15,338,429.92/21,174,703.59 = 9,539,079.94/x
  3. Step 3: Cross multiply
    15,338,429.92x = 21,174,703.59 × 9,539,079.94
  4. Step 4: Simplify right side
    15,338,429.92x = 201,987,190,250,814.97
  5. Step 5: Solve for x
    x = 201,987,190,250,814.97/15,338,429.92
  6. Step 6: Final answer
    x = 13,168,700.53

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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.