Home / 18,198,471,966.40-27,297,707,949.60-8,877,421,979.20

Finding the Fourth Proportional to 18,198,471,966.40, 27,297,707,949.60 and 8,877,421,979.20

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Solution

The fourth proportional to 18,198,471,966.40, 27,297,707,949.60 and 8,877,421,979.20 is: 13,316,132,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198,471,966.40 : 27,297,707,949.60 = 8,877,421,979.20 : x
  2. Step 2: Convert to fraction form
    18,198,471,966.40/27,297,707,949.60 = 8,877,421,979.20/x
  3. Step 3: Cross multiply
    18,198,471,966.40x = 27,297,707,949.60 × 8,877,421,979.20
  4. Step 4: Simplify right side
    18,198,471,966.40x = 242,333,272,533,561,606,144
  5. Step 5: Solve for x
    x = 242,333,272,533,561,606,144/18,198,471,966.40
  6. Step 6: Final answer
    x = 13,316,132,968.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.