Home / 209,751,419.58-289,458,196.02-121,697,847.24

Finding the Fourth Proportional to 209,751,419.58, 289,458,196.02 and 121,697,847.24

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Solution

The fourth proportional to 209,751,419.58, 289,458,196.02 and 121,697,847.24 is: 167,943,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,751,419.58 : 289,458,196.02 = 121,697,847.24 : x
  2. Step 2: Convert to fraction form
    209,751,419.58/289,458,196.02 = 121,697,847.24/x
  3. Step 3: Cross multiply
    209,751,419.58x = 289,458,196.02 × 121,697,847.24
  4. Step 4: Simplify right side
    209,751,419.58x = 35,226,439,321,607,932
  5. Step 5: Solve for x
    x = 35,226,439,321,607,932/209,751,419.58
  6. Step 6: Final answer
    x = 167,943,746.90

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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.