Home / 21,051,985.66-31,545,429.35-16,430,012.87

Finding the Fourth Proportional to 21,051,985.66, 31,545,429.35 and 16,430,012.87

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Solution

The fourth proportional to 21,051,985.66, 31,545,429.35 and 16,430,012.87 is: 24,619,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051,985.66 : 31,545,429.35 = 16,430,012.87 : x
  2. Step 2: Convert to fraction form
    21,051,985.66/31,545,429.35 = 16,430,012.87/x
  3. Step 3: Cross multiply
    21,051,985.66x = 31,545,429.35 × 16,430,012.87
  4. Step 4: Simplify right side
    21,051,985.66x = 518,291,809,970,298.50
  5. Step 5: Solve for x
    x = 518,291,809,970,298.50/21,051,985.66
  6. Step 6: Final answer
    x = 24,619,616.33

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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.