Home / 72,666,204.12-109,020,345.12-21,549,453.12

Finding the Fourth Proportional to 72,666,204.12, 109,020,345.12 and 21,549,453.12

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Solution

The fourth proportional to 72,666,204.12, 109,020,345.12 and 21,549,453.12 is: 32,330,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666,204.12 : 109,020,345.12 = 21,549,453.12 : x
  2. Step 2: Convert to fraction form
    72,666,204.12/109,020,345.12 = 21,549,453.12/x
  3. Step 3: Cross multiply
    72,666,204.12x = 109,020,345.12 × 21,549,453.12
  4. Step 4: Simplify right side
    72,666,204.12x = 2,349,328,816,289,661
  5. Step 5: Solve for x
    x = 2,349,328,816,289,661/72,666,204.12
  6. Step 6: Final answer
    x = 32,330,418.86

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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.