Home / 121,157,280.80-181,798,906.80-53,006,861.60

Finding the Fourth Proportional to 121,157,280.80, 181,798,906.80 and 53,006,861.60

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Solution

The fourth proportional to 121,157,280.80, 181,798,906.80 and 53,006,861.60 is: 79,537,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157,280.80 : 181,798,906.80 = 53,006,861.60 : x
  2. Step 2: Convert to fraction form
    121,157,280.80/181,798,906.80 = 53,006,861.60/x
  3. Step 3: Cross multiply
    121,157,280.80x = 181,798,906.80 × 53,006,861.60
  4. Step 4: Simplify right side
    121,157,280.80x = 9,636,589,491,778,900
  5. Step 5: Solve for x
    x = 9,636,589,491,778,900/121,157,280.80
  6. Step 6: Final answer
    x = 79,537,848.89

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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.