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Finding the Fourth Proportional to 30,896,168.40, 46,360,841.40 and 12,947,086.80

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Solution

The fourth proportional to 30,896,168.40, 46,360,841.40 and 12,947,086.80 is: 19,427,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,896,168.40 : 46,360,841.40 = 12,947,086.80 : x
  2. Step 2: Convert to fraction form
    30,896,168.40/46,360,841.40 = 12,947,086.80/x
  3. Step 3: Cross multiply
    30,896,168.40x = 46,360,841.40 × 12,947,086.80
  4. Step 4: Simplify right side
    30,896,168.40x = 600,237,837,726,833.50
  5. Step 5: Solve for x
    x = 600,237,837,726,833.50/30,896,168.40
  6. Step 6: Final answer
    x = 19,427,581.76

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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.