Home / 13,236,400.68-19,793,650.36-12,590,699.87

Finding the Fourth Proportional to 13,236,400.68, 19,793,650.36 and 12,590,699.87

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Solution

The fourth proportional to 13,236,400.68, 19,793,650.36 and 12,590,699.87 is: 18,828,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236,400.68 : 19,793,650.36 = 12,590,699.87 : x
  2. Step 2: Convert to fraction form
    13,236,400.68/19,793,650.36 = 12,590,699.87/x
  3. Step 3: Cross multiply
    13,236,400.68x = 19,793,650.36 × 12,590,699.87
  4. Step 4: Simplify right side
    13,236,400.68x = 249,215,911,024,020.41
  5. Step 5: Solve for x
    x = 249,215,911,024,020.41/13,236,400.68
  6. Step 6: Final answer
    x = 18,828,072.45

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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.