Home / 31,730,156.05-43,796,695.53-18,684,981.79

Finding the Fourth Proportional to 31,730,156.05, 43,796,695.53 and 18,684,981.79

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Solution

The fourth proportional to 31,730,156.05, 43,796,695.53 and 18,684,981.79 is: 25,790,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730,156.05 : 43,796,695.53 = 18,684,981.79 : x
  2. Step 2: Convert to fraction form
    31,730,156.05/43,796,695.53 = 18,684,981.79/x
  3. Step 3: Cross multiply
    31,730,156.05x = 43,796,695.53 × 18,684,981.79
  4. Step 4: Simplify right side
    31,730,156.05x = 818,340,458,440,224.38
  5. Step 5: Solve for x
    x = 818,340,458,440,224.38/31,730,156.05
  6. Step 6: Final answer
    x = 25,790,621.93

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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.