Home / 72,772,635.72-100,414,389.66-42,999,135.87

Finding the Fourth Proportional to 72,772,635.72, 100,414,389.66 and 42,999,135.87

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Solution

The fourth proportional to 72,772,635.72, 100,414,389.66 and 42,999,135.87 is: 59,331,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772,635.72 : 100,414,389.66 = 42,999,135.87 : x
  2. Step 2: Convert to fraction form
    72,772,635.72/100,414,389.66 = 42,999,135.87/x
  3. Step 3: Cross multiply
    72,772,635.72x = 100,414,389.66 × 42,999,135.87
  4. Step 4: Simplify right side
    72,772,635.72x = 4,317,731,984,293,462.50
  5. Step 5: Solve for x
    x = 4,317,731,984,293,462.50/72,772,635.72
  6. Step 6: Final answer
    x = 59,331,807.09

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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.