Home / 20,836,646.40-31,256,151.12-6,461,757.84

Finding the Fourth Proportional to 20,836,646.40, 31,256,151.12 and 6,461,757.84

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Solution

The fourth proportional to 20,836,646.40, 31,256,151.12 and 6,461,757.84 is: 9,693,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,646.40 : 31,256,151.12 = 6,461,757.84 : x
  2. Step 2: Convert to fraction form
    20,836,646.40/31,256,151.12 = 6,461,757.84/x
  3. Step 3: Cross multiply
    20,836,646.40x = 31,256,151.12 × 6,461,757.84
  4. Step 4: Simplify right side
    20,836,646.40x = 201,969,679,547,884.78
  5. Step 5: Solve for x
    x = 201,969,679,547,884.78/20,836,646.40
  6. Step 6: Final answer
    x = 9,693,003.17

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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.