Home / 121,115,703.60-181,715,545.80-53,007,274.80

Finding the Fourth Proportional to 121,115,703.60, 181,715,545.80 and 53,007,274.80

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Solution

The fourth proportional to 121,115,703.60, 181,715,545.80 and 53,007,274.80 is: 79,529,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,115,703.60 : 181,715,545.80 = 53,007,274.80 : x
  2. Step 2: Convert to fraction form
    121,115,703.60/181,715,545.80 = 53,007,274.80/x
  3. Step 3: Cross multiply
    121,115,703.60x = 181,715,545.80 × 53,007,274.80
  4. Step 4: Simplify right side
    121,115,703.60x = 9,632,245,871,652,586
  5. Step 5: Solve for x
    x = 9,632,245,871,652,586/121,115,703.60
  6. Step 6: Final answer
    x = 79,529,289.64

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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.