Home / 31,423,088.20-43,357,362.80-18,367,821.77

Finding the Fourth Proportional to 31,423,088.20, 43,357,362.80 and 18,367,821.77

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Solution

The fourth proportional to 31,423,088.20, 43,357,362.80 and 18,367,821.77 is: 25,343,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423,088.20 : 43,357,362.80 = 18,367,821.77 : x
  2. Step 2: Convert to fraction form
    31,423,088.20/43,357,362.80 = 18,367,821.77/x
  3. Step 3: Cross multiply
    31,423,088.20x = 43,357,362.80 × 18,367,821.77
  4. Step 4: Simplify right side
    31,423,088.20x = 796,380,312,327,628.12
  5. Step 5: Solve for x
    x = 796,380,312,327,628.12/31,423,088.20
  6. Step 6: Final answer
    x = 25,343,795.21

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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.