Home / 121,115,625.60-181,715,428.80-53,007,196.80

Finding the Fourth Proportional to 121,115,625.60, 181,715,428.80 and 53,007,196.80

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Solution

The fourth proportional to 121,115,625.60, 181,715,428.80 and 53,007,196.80 is: 79,529,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,115,625.60 : 181,715,428.80 = 53,007,196.80 : x
  2. Step 2: Convert to fraction form
    121,115,625.60/181,715,428.80 = 53,007,196.80/x
  3. Step 3: Cross multiply
    121,115,625.60x = 181,715,428.80 × 53,007,196.80
  4. Step 4: Simplify right side
    121,115,625.60x = 9,632,225,495,997,988
  5. Step 5: Solve for x
    x = 9,632,225,495,997,988/121,115,625.60
  6. Step 6: Final answer
    x = 79,529,172.63

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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.