Home / 68,730,173.51-103,075,081.09-20,196,488.21

Finding the Fourth Proportional to 68,730,173.51, 103,075,081.09 and 20,196,488.21

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Solution

The fourth proportional to 68,730,173.51, 103,075,081.09 and 20,196,488.21 is: 30,288,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730,173.51 : 103,075,081.09 = 20,196,488.21 : x
  2. Step 2: Convert to fraction form
    68,730,173.51/103,075,081.09 = 20,196,488.21/x
  3. Step 3: Cross multiply
    68,730,173.51x = 103,075,081.09 × 20,196,488.21
  4. Step 4: Simplify right side
    68,730,173.51x = 2,081,754,659,413,112.25
  5. Step 5: Solve for x
    x = 2,081,754,659,413,112.25/68,730,173.51
  6. Step 6: Final answer
    x = 30,288,802.62

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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.