Home / 309,423,541.91-464,084,859.61-91,022,806.90

Finding the Fourth Proportional to 309,423,541.91, 464,084,859.61 and 91,022,806.90

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Solution

The fourth proportional to 309,423,541.91, 464,084,859.61 and 91,022,806.90 is: 136,519,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,423,541.91 : 464,084,859.61 = 91,022,806.90 : x
  2. Step 2: Convert to fraction form
    309,423,541.91/464,084,859.61 = 91,022,806.90/x
  3. Step 3: Cross multiply
    309,423,541.91x = 464,084,859.61 × 91,022,806.90
  4. Step 4: Simplify right side
    309,423,541.91x = 42,242,306,561,494,640
  5. Step 5: Solve for x
    x = 42,242,306,561,494,640/309,423,541.91
  6. Step 6: Final answer
    x = 136,519,368.57

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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.