Home / 21,032,431.60-31,566,362.10-8,262,101.20

Finding the Fourth Proportional to 21,032,431.60, 31,566,362.10 and 8,262,101.20

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Solution

The fourth proportional to 21,032,431.60, 31,566,362.10 and 8,262,101.20 is: 12,400,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,431.60 : 31,566,362.10 = 8,262,101.20 : x
  2. Step 2: Convert to fraction form
    21,032,431.60/31,566,362.10 = 8,262,101.20/x
  3. Step 3: Cross multiply
    21,032,431.60x = 31,566,362.10 × 8,262,101.20
  4. Step 4: Simplify right side
    21,032,431.60x = 260,804,478,186,044.53
  5. Step 5: Solve for x
    x = 260,804,478,186,044.53/21,032,431.60
  6. Step 6: Final answer
    x = 12,400,110.61

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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.