Home / 72,226,866.78-108,196,808.67-39,798,337.50

Finding the Fourth Proportional to 72,226,866.78, 108,196,808.67 and 39,798,337.50

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Solution

The fourth proportional to 72,226,866.78, 108,196,808.67 and 39,798,337.50 is: 59,618,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,226,866.78 : 108,196,808.67 = 39,798,337.50 : x
  2. Step 2: Convert to fraction form
    72,226,866.78/108,196,808.67 = 39,798,337.50/x
  3. Step 3: Cross multiply
    72,226,866.78x = 108,196,808.67 × 39,798,337.50
  4. Step 4: Simplify right side
    72,226,866.78x = 4,306,053,107,871,586
  5. Step 5: Solve for x
    x = 4,306,053,107,871,586/72,226,866.78
  6. Step 6: Final answer
    x = 59,618,439.78

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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.