Home / 13,333,855.48-18,400,721.58-7,222,285.88

Finding the Fourth Proportional to 13,333,855.48, 18,400,721.58 and 7,222,285.88

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Solution

The fourth proportional to 13,333,855.48, 18,400,721.58 and 7,222,285.88 is: 9,966,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333,855.48 : 18,400,721.58 = 7,222,285.88 : x
  2. Step 2: Convert to fraction form
    13,333,855.48/18,400,721.58 = 7,222,285.88/x
  3. Step 3: Cross multiply
    13,333,855.48x = 18,400,721.58 × 7,222,285.88
  4. Step 4: Simplify right side
    13,333,855.48x = 132,895,271,649,045.28
  5. Step 5: Solve for x
    x = 132,895,271,649,045.28/13,333,855.48
  6. Step 6: Final answer
    x = 9,966,755.07

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1.5x scale

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.