Home / 68,717,017.34-103,075,546.55-20,194,871.20

Finding the Fourth Proportional to 68,717,017.34, 103,075,546.55 and 20,194,871.20

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Solution

The fourth proportional to 68,717,017.34, 103,075,546.55 and 20,194,871.20 is: 30,292,312.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717,017.34 : 103,075,546.55 = 20,194,871.20 : x
  2. Step 2: Convert to fraction form
    68,717,017.34/103,075,546.55 = 20,194,871.20/x
  3. Step 3: Cross multiply
    68,717,017.34x = 103,075,546.55 × 20,194,871.20
  4. Step 4: Simplify right side
    68,717,017.34x = 2,081,597,386,088,191.25
  5. Step 5: Solve for x
    x = 2,081,597,386,088,191.25/68,717,017.34
  6. Step 6: Final answer
    x = 30,292,312.83

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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.