Home / 72,003,916.81-99,365,666.82-38,964,162.46

Finding the Fourth Proportional to 72,003,916.81, 99,365,666.82 and 38,964,162.46

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Solution

The fourth proportional to 72,003,916.81, 99,365,666.82 and 38,964,162.46 is: 53,770,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003,916.81 : 99,365,666.82 = 38,964,162.46 : x
  2. Step 2: Convert to fraction form
    72,003,916.81/99,365,666.82 = 38,964,162.46/x
  3. Step 3: Cross multiply
    72,003,916.81x = 99,365,666.82 × 38,964,162.46
  4. Step 4: Simplify right side
    72,003,916.81x = 3,871,699,984,920,711.50
  5. Step 5: Solve for x
    x = 3,871,699,984,920,711.50/72,003,916.81
  6. Step 6: Final answer
    x = 53,770,685.77

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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.