Home / 90,642,689.86-136,004,222.22-47,501,636.26

Finding the Fourth Proportional to 90,642,689.86, 136,004,222.22 and 47,501,636.26

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Solution

The fourth proportional to 90,642,689.86, 136,004,222.22 and 47,501,636.26 is: 71,273,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,642,689.86 : 136,004,222.22 = 47,501,636.26 : x
  2. Step 2: Convert to fraction form
    90,642,689.86/136,004,222.22 = 47,501,636.26/x
  3. Step 3: Cross multiply
    90,642,689.86x = 136,004,222.22 × 47,501,636.26
  4. Step 4: Simplify right side
    90,642,689.86x = 6,460,423,093,718,649
  5. Step 5: Solve for x
    x = 6,460,423,093,718,649/90,642,689.86
  6. Step 6: Final answer
    x = 71,273,514.76

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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.