Home / 77,777,890.80-116,592,186.60-60,496,508.40

Finding the Fourth Proportional to 77,777,890.80, 116,592,186.60 and 60,496,508.40

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Solution

The fourth proportional to 77,777,890.80, 116,592,186.60 and 60,496,508.40 is: 90,686,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,777,890.80 : 116,592,186.60 = 60,496,508.40 : x
  2. Step 2: Convert to fraction form
    77,777,890.80/116,592,186.60 = 60,496,508.40/x
  3. Step 3: Cross multiply
    77,777,890.80x = 116,592,186.60 × 60,496,508.40
  4. Step 4: Simplify right side
    77,777,890.80x = 7,053,420,196,021,267
  5. Step 5: Solve for x
    x = 7,053,420,196,021,267/77,777,890.80
  6. Step 6: Final answer
    x = 90,686,699.31

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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.