Home / 143,219,462.61-197,677,666.86-87,511,793.07

Finding the Fourth Proportional to 143,219,462.61, 197,677,666.86 and 87,511,793.07

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Solution

The fourth proportional to 143,219,462.61, 197,677,666.86 and 87,511,793.07 is: 120,787,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,219,462.61 : 197,677,666.86 = 87,511,793.07 : x
  2. Step 2: Convert to fraction form
    143,219,462.61/197,677,666.86 = 87,511,793.07/x
  3. Step 3: Cross multiply
    143,219,462.61x = 197,677,666.86 × 87,511,793.07
  4. Step 4: Simplify right side
    143,219,462.61x = 17,299,127,076,812,716
  5. Step 5: Solve for x
    x = 17,299,127,076,812,716/143,219,462.61
  6. Step 6: Final answer
    x = 120,787,543.55

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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.