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Finding the Fourth Proportional to 299,938,751.40, 449,908,127.10 and 84,527,999.40

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Solution

The fourth proportional to 299,938,751.40, 449,908,127.10 and 84,527,999.40 is: 126,791,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,938,751.40 : 449,908,127.10 = 84,527,999.40 : x
  2. Step 2: Convert to fraction form
    299,938,751.40/449,908,127.10 = 84,527,999.40/x
  3. Step 3: Cross multiply
    299,938,751.40x = 449,908,127.10 × 84,527,999.40
  4. Step 4: Simplify right side
    299,938,751.40x = 38,029,833,897,563,928
  5. Step 5: Solve for x
    x = 38,029,833,897,563,928/299,938,751.40
  6. Step 6: Final answer
    x = 126,791,999.10

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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.