Home / 68,375,603.10-102,563,404.65-20,506,547.10

Finding the Fourth Proportional to 68,375,603.10, 102,563,404.65 and 20,506,547.10

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Solution

The fourth proportional to 68,375,603.10, 102,563,404.65 and 20,506,547.10 is: 30,759,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375,603.10 : 102,563,404.65 = 20,506,547.10 : x
  2. Step 2: Convert to fraction form
    68,375,603.10/102,563,404.65 = 20,506,547.10/x
  3. Step 3: Cross multiply
    68,375,603.10x = 102,563,404.65 × 20,506,547.10
  4. Step 4: Simplify right side
    68,375,603.10x = 2,103,221,288,191,584.25
  5. Step 5: Solve for x
    x = 2,103,221,288,191,584.25/68,375,603.10
  6. Step 6: Final answer
    x = 30,759,820.65

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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.