Home / 30,865,134.60-42,589,970.82-16,922,820.76

Finding the Fourth Proportional to 30,865,134.60, 42,589,970.82 and 16,922,820.76

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Solution

The fourth proportional to 30,865,134.60, 42,589,970.82 and 16,922,820.76 is: 23,351,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865,134.60 : 42,589,970.82 = 16,922,820.76 : x
  2. Step 2: Convert to fraction form
    30,865,134.60/42,589,970.82 = 16,922,820.76/x
  3. Step 3: Cross multiply
    30,865,134.60x = 42,589,970.82 × 16,922,820.76
  4. Step 4: Simplify right side
    30,865,134.60x = 720,742,442,360,490.25
  5. Step 5: Solve for x
    x = 720,742,442,360,490.25/30,865,134.60
  6. Step 6: Final answer
    x = 23,351,346.16

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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.