Home / 21,803,538.91-30,090,224.03-12,013,980.55

Finding the Fourth Proportional to 21,803,538.91, 30,090,224.03 and 12,013,980.55

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Solution

The fourth proportional to 21,803,538.91, 30,090,224.03 and 12,013,980.55 is: 16,580,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803,538.91 : 30,090,224.03 = 12,013,980.55 : x
  2. Step 2: Convert to fraction form
    21,803,538.91/30,090,224.03 = 12,013,980.55/x
  3. Step 3: Cross multiply
    21,803,538.91x = 30,090,224.03 × 12,013,980.55
  4. Step 4: Simplify right side
    21,803,538.91x = 361,503,366,173,845.81
  5. Step 5: Solve for x
    x = 361,503,366,173,845.81/21,803,538.91
  6. Step 6: Final answer
    x = 16,580,031.69

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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.