Home / 139,923,115.54-193,094,570.79-77,199,209.93

Finding the Fourth Proportional to 139,923,115.54, 193,094,570.79 and 77,199,209.93

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Solution

The fourth proportional to 139,923,115.54, 193,094,570.79 and 77,199,209.93 is: 106,535,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923,115.54 : 193,094,570.79 = 77,199,209.93 : x
  2. Step 2: Convert to fraction form
    139,923,115.54/193,094,570.79 = 77,199,209.93/x
  3. Step 3: Cross multiply
    139,923,115.54x = 193,094,570.79 × 77,199,209.93
  4. Step 4: Simplify right side
    139,923,115.54x = 14,906,748,307,243,192
  5. Step 5: Solve for x
    x = 14,906,748,307,243,192/139,923,115.54
  6. Step 6: Final answer
    x = 106,535,280.11

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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.