Home / 19,315,665.60-28,973,498.40-12,933,124.80

Finding the Fourth Proportional to 19,315,665.60, 28,973,498.40 and 12,933,124.80

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Solution

The fourth proportional to 19,315,665.60, 28,973,498.40 and 12,933,124.80 is: 19,399,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,665.60 : 28,973,498.40 = 12,933,124.80 : x
  2. Step 2: Convert to fraction form
    19,315,665.60/28,973,498.40 = 12,933,124.80/x
  3. Step 3: Cross multiply
    19,315,665.60x = 28,973,498.40 × 12,933,124.80
  4. Step 4: Simplify right side
    19,315,665.60x = 374,717,870,699,800.31
  5. Step 5: Solve for x
    x = 374,717,870,699,800.31/19,315,665.60
  6. Step 6: Final answer
    x = 19,399,687.20

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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.