Home / 30,730,095.12-42,408,386.82-16,979,949.84

Finding the Fourth Proportional to 30,730,095.12, 42,408,386.82 and 16,979,949.84

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Solution

The fourth proportional to 30,730,095.12, 42,408,386.82 and 16,979,949.84 is: 23,432,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730,095.12 : 42,408,386.82 = 16,979,949.84 : x
  2. Step 2: Convert to fraction form
    30,730,095.12/42,408,386.82 = 16,979,949.84/x
  3. Step 3: Cross multiply
    30,730,095.12x = 42,408,386.82 × 16,979,949.84
  4. Step 4: Simplify right side
    30,730,095.12x = 720,092,280,998,917.12
  5. Step 5: Solve for x
    x = 720,092,280,998,917.12/30,730,095.12
  6. Step 6: Final answer
    x = 23,432,803.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.