Home / 39,876,512.80-59,814,769.20-12,952,890.40

Finding the Fourth Proportional to 39,876,512.80, 59,814,769.20 and 12,952,890.40

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Solution

The fourth proportional to 39,876,512.80, 59,814,769.20 and 12,952,890.40 is: 19,429,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876,512.80 : 59,814,769.20 = 12,952,890.40 : x
  2. Step 2: Convert to fraction form
    39,876,512.80/59,814,769.20 = 12,952,890.40/x
  3. Step 3: Cross multiply
    39,876,512.80x = 59,814,769.20 × 12,952,890.40
  4. Step 4: Simplify right side
    39,876,512.80x = 774,774,149,748,895.75
  5. Step 5: Solve for x
    x = 774,774,149,748,895.75/39,876,512.80
  6. Step 6: Final answer
    x = 19,429,335.60

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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.