Home / 87,939,108.60-131,908,662.90-74,901,089.40

Finding the Fourth Proportional to 87,939,108.60, 131,908,662.90 and 74,901,089.40

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Solution

The fourth proportional to 87,939,108.60, 131,908,662.90 and 74,901,089.40 is: 112,351,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,939,108.60 : 131,908,662.90 = 74,901,089.40 : x
  2. Step 2: Convert to fraction form
    87,939,108.60/131,908,662.90 = 74,901,089.40/x
  3. Step 3: Cross multiply
    87,939,108.60x = 131,908,662.90 × 74,901,089.40
  4. Step 4: Simplify right side
    87,939,108.60x = 9,880,102,552,507,364
  5. Step 5: Solve for x
    x = 9,880,102,552,507,364/87,939,108.60
  6. Step 6: Final answer
    x = 112,351,634.10

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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.