Home / 209,885,817.29-289,643,433.95-115,799,959.49

Finding the Fourth Proportional to 209,885,817.29, 289,643,433.95 and 115,799,959.49

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Solution

The fourth proportional to 209,885,817.29, 289,643,433.95 and 115,799,959.49 is: 159,804,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,885,817.29 : 289,643,433.95 = 115,799,959.49 : x
  2. Step 2: Convert to fraction form
    209,885,817.29/289,643,433.95 = 115,799,959.49/x
  3. Step 3: Cross multiply
    209,885,817.29x = 289,643,433.95 × 115,799,959.49
  4. Step 4: Simplify right side
    209,885,817.29x = 33,540,697,917,375,488
  5. Step 5: Solve for x
    x = 33,540,697,917,375,488/209,885,817.29
  6. Step 6: Final answer
    x = 159,804,499.18

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