Home / 68,375,688.60-102,563,532.90-20,506,632.60

Finding the Fourth Proportional to 68,375,688.60, 102,563,532.90 and 20,506,632.60

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Solution

The fourth proportional to 68,375,688.60, 102,563,532.90 and 20,506,632.60 is: 30,759,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375,688.60 : 102,563,532.90 = 20,506,632.60 : x
  2. Step 2: Convert to fraction form
    68,375,688.60/102,563,532.90 = 20,506,632.60/x
  3. Step 3: Cross multiply
    68,375,688.60x = 102,563,532.90 × 20,506,632.60
  4. Step 4: Simplify right side
    68,375,688.60x = 2,103,232,687,338,312.75
  5. Step 5: Solve for x
    x = 2,103,232,687,338,312.75/68,375,688.60
  6. Step 6: Final answer
    x = 30,759,948.90

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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.