Home / 120,911,922.82-181,102,038.74-99,924,505.81

Finding the Fourth Proportional to 120,911,922.82, 181,102,038.74 and 99,924,505.81

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Solution

The fourth proportional to 120,911,922.82, 181,102,038.74 and 99,924,505.81 is: 149,667,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,911,922.82 : 181,102,038.74 = 99,924,505.81 : x
  2. Step 2: Convert to fraction form
    120,911,922.82/181,102,038.74 = 99,924,505.81/x
  3. Step 3: Cross multiply
    120,911,922.82x = 181,102,038.74 × 99,924,505.81
  4. Step 4: Simplify right side
    120,911,922.82x = 18,096,531,721,700,316
  5. Step 5: Solve for x
    x = 18,096,531,721,700,316/120,911,922.82
  6. Step 6: Final answer
    x = 149,667,057.64

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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.