Home / 21,308,363.76-31,970,593.80-12,794,615.76

Finding the Fourth Proportional to 21,308,363.76, 31,970,593.80 and 12,794,615.76

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Solution

The fourth proportional to 21,308,363.76, 31,970,593.80 and 12,794,615.76 is: 19,196,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,363.76 : 31,970,593.80 = 12,794,615.76 : x
  2. Step 2: Convert to fraction form
    21,308,363.76/31,970,593.80 = 12,794,615.76/x
  3. Step 3: Cross multiply
    21,308,363.76x = 31,970,593.80 × 12,794,615.76
  4. Step 4: Simplify right side
    21,308,363.76x = 409,051,463,290,038.31
  5. Step 5: Solve for x
    x = 409,051,463,290,038.31/21,308,363.76
  6. Step 6: Final answer
    x = 19,196,756.16

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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.