Home / 209,516,482.97-289,132,825.61-121,461,524.78

Finding the Fourth Proportional to 209,516,482.97, 289,132,825.61 and 121,461,524.78

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Solution

The fourth proportional to 209,516,482.97, 289,132,825.61 and 121,461,524.78 is: 167,616,950.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516,482.97 : 289,132,825.61 = 121,461,524.78 : x
  2. Step 2: Convert to fraction form
    209,516,482.97/289,132,825.61 = 121,461,524.78/x
  3. Step 3: Cross multiply
    209,516,482.97x = 289,132,825.61 × 121,461,524.78
  4. Step 4: Simplify right side
    209,516,482.97x = 35,118,513,862,655,960
  5. Step 5: Solve for x
    x = 35,118,513,862,655,960/209,516,482.97
  6. Step 6: Final answer
    x = 167,616,950.06

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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.