Home / 209,751,441.47-289,458,226.29-121,697,869.13

Finding the Fourth Proportional to 209,751,441.47, 289,458,226.29 and 121,697,869.13

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Solution

The fourth proportional to 209,751,441.47, 289,458,226.29 and 121,697,869.13 is: 167,943,777.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,751,441.47 : 289,458,226.29 = 121,697,869.13 : x
  2. Step 2: Convert to fraction form
    209,751,441.47/289,458,226.29 = 121,697,869.13/x
  3. Step 3: Cross multiply
    209,751,441.47x = 289,458,226.29 × 121,697,869.13
  4. Step 4: Simplify right side
    209,751,441.47x = 35,226,449,341,642,348
  5. Step 5: Solve for x
    x = 35,226,449,341,642,348/209,751,441.47
  6. Step 6: Final answer
    x = 167,943,777.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.