Home / 121,118,509.60-181,719,754.80-53,010,080.80

Finding the Fourth Proportional to 121,118,509.60, 181,719,754.80 and 53,010,080.80

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Solution

The fourth proportional to 121,118,509.60, 181,719,754.80 and 53,010,080.80 is: 79,533,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118,509.60 : 181,719,754.80 = 53,010,080.80 : x
  2. Step 2: Convert to fraction form
    121,118,509.60/181,719,754.80 = 53,010,080.80/x
  3. Step 3: Cross multiply
    121,118,509.60x = 181,719,754.80 × 53,010,080.80
  4. Step 4: Simplify right side
    121,118,509.60x = 9,632,978,884,904,188
  5. Step 5: Solve for x
    x = 9,632,978,884,904,188/121,118,509.60
  6. Step 6: Final answer
    x = 79,533,499.19

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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.