Home / 121,118,013.60-181,719,010.80-53,009,584.80

Finding the Fourth Proportional to 121,118,013.60, 181,719,010.80 and 53,009,584.80

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Solution

The fourth proportional to 121,118,013.60, 181,719,010.80 and 53,009,584.80 is: 79,532,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118,013.60 : 181,719,010.80 = 53,009,584.80 : x
  2. Step 2: Convert to fraction form
    121,118,013.60/181,719,010.80 = 53,009,584.80/x
  3. Step 3: Cross multiply
    121,118,013.60x = 181,719,010.80 × 53,009,584.80
  4. Step 4: Simplify right side
    121,118,013.60x = 9,632,849,312,774,716
  5. Step 5: Solve for x
    x = 9,632,849,312,774,716/121,118,013.60
  6. Step 6: Final answer
    x = 79,532,755.09

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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.