Home / 78,408,878.33-108,227,061.62-52,303,333.89

Finding the Fourth Proportional to 78,408,878.33, 108,227,061.62 and 52,303,333.89

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Solution

The fourth proportional to 78,408,878.33, 108,227,061.62 and 52,303,333.89 is: 72,193,816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,408,878.33 : 108,227,061.62 = 52,303,333.89 : x
  2. Step 2: Convert to fraction form
    78,408,878.33/108,227,061.62 = 52,303,333.89/x
  3. Step 3: Cross multiply
    78,408,878.33x = 108,227,061.62 × 52,303,333.89
  4. Step 4: Simplify right side
    78,408,878.33x = 5,660,636,139,975,223
  5. Step 5: Solve for x
    x = 5,660,636,139,975,223/78,408,878.33
  6. Step 6: Final answer
    x = 72,193,816.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.