Home / 143,346,487.12-197,833,330.56-87,624,524.45

Finding the Fourth Proportional to 143,346,487.12, 197,833,330.56 and 87,624,524.45

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Solution

The fourth proportional to 143,346,487.12, 197,833,330.56 and 87,624,524.45 is: 120,931,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,346,487.12 : 197,833,330.56 = 87,624,524.45 : x
  2. Step 2: Convert to fraction form
    143,346,487.12/197,833,330.56 = 87,624,524.45/x
  3. Step 3: Cross multiply
    143,346,487.12x = 197,833,330.56 × 87,624,524.45
  4. Step 4: Simplify right side
    143,346,487.12x = 17,335,051,511,502,828
  5. Step 5: Solve for x
    x = 17,335,051,511,502,828/143,346,487.12
  6. Step 6: Final answer
    x = 120,931,121.93

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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.