Home / 68,965,685.15-103,461,277.91-19,779,479.24

Finding the Fourth Proportional to 68,965,685.15, 103,461,277.91 and 19,779,479.24

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Solution

The fourth proportional to 68,965,685.15, 103,461,277.91 and 19,779,479.24 is: 29,672,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965,685.15 : 103,461,277.91 = 19,779,479.24 : x
  2. Step 2: Convert to fraction form
    68,965,685.15/103,461,277.91 = 19,779,479.24/x
  3. Step 3: Cross multiply
    68,965,685.15x = 103,461,277.91 × 19,779,479.24
  4. Step 4: Simplify right side
    68,965,685.15x = 2,046,410,197,948,511.75
  5. Step 5: Solve for x
    x = 2,046,410,197,948,511.75/68,965,685.15
  6. Step 6: Final answer
    x = 29,672,875.63

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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.