Home / 68,953,563.41-103,445,479.15-20,435,219.91

Finding the Fourth Proportional to 68,953,563.41, 103,445,479.15 and 20,435,219.91

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Solution

The fourth proportional to 68,953,563.41, 103,445,479.15 and 20,435,219.91 is: 30,657,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953,563.41 : 103,445,479.15 = 20,435,219.91 : x
  2. Step 2: Convert to fraction form
    68,953,563.41/103,445,479.15 = 20,435,219.91/x
  3. Step 3: Cross multiply
    68,953,563.41x = 103,445,479.15 × 20,435,219.91
  4. Step 4: Simplify right side
    68,953,563.41x = 2,113,931,115,074,481.75
  5. Step 5: Solve for x
    x = 2,113,931,115,074,481.75/68,953,563.41
  6. Step 6: Final answer
    x = 30,657,315.02

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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.