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Finding the Fourth Proportional to 242,370,707.78, 363,661,704.02 and 84,916,678.45

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Solution

The fourth proportional to 242,370,707.78, 363,661,704.02 and 84,916,678.45 is: 127,412,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,370,707.78 : 363,661,704.02 = 84,916,678.45 : x
  2. Step 2: Convert to fraction form
    242,370,707.78/363,661,704.02 = 84,916,678.45/x
  3. Step 3: Cross multiply
    242,370,707.78x = 363,661,704.02 × 84,916,678.45
  4. Step 4: Simplify right side
    242,370,707.78x = 30,880,943,984,845,412
  5. Step 5: Solve for x
    x = 30,880,943,984,845,412/242,370,707.78
  6. Step 6: Final answer
    x = 127,412,030.39

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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.