Home / 15,334,031.60-21,159,328.48-8,458,513.12

Finding the Fourth Proportional to 15,334,031.60, 21,159,328.48 and 8,458,513.12

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Solution

The fourth proportional to 15,334,031.60, 21,159,328.48 and 8,458,513.12 is: 11,671,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334,031.60 : 21,159,328.48 = 8,458,513.12 : x
  2. Step 2: Convert to fraction form
    15,334,031.60/21,159,328.48 = 8,458,513.12/x
  3. Step 3: Cross multiply
    15,334,031.60x = 21,159,328.48 × 8,458,513.12
  4. Step 4: Simplify right side
    15,334,031.60x = 178,976,457,558,469.66
  5. Step 5: Solve for x
    x = 178,976,457,558,469.66/15,334,031.60
  6. Step 6: Final answer
    x = 11,671,846.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.