Home / 154,927,318.05-213,783,444.69-87,924,939.45

Finding the Fourth Proportional to 154,927,318.05, 213,783,444.69 and 87,924,939.45

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Solution

The fourth proportional to 154,927,318.05, 213,783,444.69 and 87,924,939.45 is: 121,327,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,927,318.05 : 213,783,444.69 = 87,924,939.45 : x
  2. Step 2: Convert to fraction form
    154,927,318.05/213,783,444.69 = 87,924,939.45/x
  3. Step 3: Cross multiply
    154,927,318.05x = 213,783,444.69 × 87,924,939.45
  4. Step 4: Simplify right side
    154,927,318.05x = 18,796,896,429,780,676
  5. Step 5: Solve for x
    x = 18,796,896,429,780,676/154,927,318.05
  6. Step 6: Final answer
    x = 121,327,191.78

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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.