Home / 139,637,588.12-209,312,664.60-61,951,078

Finding the Fourth Proportional to 139,637,588.12, 209,312,664.60 and 61,951,078

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Solution

The fourth proportional to 139,637,588.12, 209,312,664.60 and 61,951,078 is: 92,862,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,637,588.12 : 209,312,664.60 = 61,951,078 : x
  2. Step 2: Convert to fraction form
    139,637,588.12/209,312,664.60 = 61,951,078/x
  3. Step 3: Cross multiply
    139,637,588.12x = 209,312,664.60 × 61,951,078
  4. Step 4: Simplify right side
    139,637,588.12x = 12,967,145,211,022,438
  5. Step 5: Solve for x
    x = 12,967,145,211,022,438/139,637,588.12
  6. Step 6: Final answer
    x = 92,862,855.81

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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.