Home / 86,988,748.50-120,041,400.20-47,830,251.06

Finding the Fourth Proportional to 86,988,748.50, 120,041,400.20 and 47,830,251.06

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Solution

The fourth proportional to 86,988,748.50, 120,041,400.20 and 47,830,251.06 is: 66,004,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,988,748.50 : 120,041,400.20 = 47,830,251.06 : x
  2. Step 2: Convert to fraction form
    86,988,748.50/120,041,400.20 = 47,830,251.06/x
  3. Step 3: Cross multiply
    86,988,748.50x = 120,041,400.20 × 47,830,251.06
  4. Step 4: Simplify right side
    86,988,748.50x = 5,741,610,308,920,783
  5. Step 5: Solve for x
    x = 5,741,610,308,920,783/86,988,748.50
  6. Step 6: Final answer
    x = 66,004,056.94

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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.