Home / 13,158,514.86-18,153,190.11-8,809,002.51

Finding the Fourth Proportional to 13,158,514.86, 18,153,190.11 and 8,809,002.51

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Solution

The fourth proportional to 13,158,514.86, 18,153,190.11 and 8,809,002.51 is: 12,152,701.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158,514.86 : 18,153,190.11 = 8,809,002.51 : x
  2. Step 2: Convert to fraction form
    13,158,514.86/18,153,190.11 = 8,809,002.51/x
  3. Step 3: Cross multiply
    13,158,514.86x = 18,153,190.11 × 8,809,002.51
  4. Step 4: Simplify right side
    13,158,514.86x = 159,911,497,243,497.16
  5. Step 5: Solve for x
    x = 159,911,497,243,497.16/13,158,514.86
  6. Step 6: Final answer
    x = 12,152,701.04

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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.