Home / 20,729,532.68-30,881,548.53-19,796,857.16

Finding the Fourth Proportional to 20,729,532.68, 30,881,548.53 and 19,796,857.16

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Solution

The fourth proportional to 20,729,532.68, 30,881,548.53 and 19,796,857.16 is: 29,492,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,532.68 : 30,881,548.53 = 19,796,857.16 : x
  2. Step 2: Convert to fraction form
    20,729,532.68/30,881,548.53 = 19,796,857.16/x
  3. Step 3: Cross multiply
    20,729,532.68x = 30,881,548.53 × 19,796,857.16
  4. Step 4: Simplify right side
    20,729,532.68x = 611,357,605,128,018
  5. Step 5: Solve for x
    x = 611,357,605,128,018/20,729,532.68
  6. Step 6: Final answer
    x = 29,492,107.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.