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Finding the Fourth Proportional to 299,671,180, 449,506,944.96 and 84,260,428

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Solution

The fourth proportional to 299,671,180, 449,506,944.96 and 84,260,428 is: 126,390,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,671,180 : 449,506,944.96 = 84,260,428 : x
  2. Step 2: Convert to fraction form
    299,671,180/449,506,944.96 = 84,260,428/x
  3. Step 3: Cross multiply
    299,671,180x = 449,506,944.96 × 84,260,428
  4. Step 4: Simplify right side
    299,671,180x = 37,875,647,571,302,040
  5. Step 5: Solve for x
    x = 37,875,647,571,302,040/299,671,180
  6. Step 6: Final answer
    x = 126,390,691.19

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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.