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Finding the Fourth Proportional to 299,547,109.80, 449,320,664.70 and 245,127,551.40

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Solution

The fourth proportional to 299,547,109.80, 449,320,664.70 and 245,127,551.40 is: 367,691,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,547,109.80 : 449,320,664.70 = 245,127,551.40 : x
  2. Step 2: Convert to fraction form
    299,547,109.80/449,320,664.70 = 245,127,551.40/x
  3. Step 3: Cross multiply
    299,547,109.80x = 449,320,664.70 × 245,127,551.40
  4. Step 4: Simplify right side
    299,547,109.80x = 110,140,874,331,331,408
  5. Step 5: Solve for x
    x = 110,140,874,331,331,408/299,547,109.80
  6. Step 6: Final answer
    x = 367,691,327.10

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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.