Home / 18,702,045.90-28,005,829.65-12,277,514.70

Finding the Fourth Proportional to 18,702,045.90, 28,005,829.65 and 12,277,514.70

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Solution

The fourth proportional to 18,702,045.90, 28,005,829.65 and 12,277,514.70 is: 18,385,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702,045.90 : 28,005,829.65 = 12,277,514.70 : x
  2. Step 2: Convert to fraction form
    18,702,045.90/28,005,829.65 = 12,277,514.70/x
  3. Step 3: Cross multiply
    18,702,045.90x = 28,005,829.65 × 12,277,514.70
  4. Step 4: Simplify right side
    18,702,045.90x = 343,841,985,213,570.81
  5. Step 5: Solve for x
    x = 343,841,985,213,570.81/18,702,045.90
  6. Step 6: Final answer
    x = 18,385,260.47

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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.