Home / 745,284,905.97-1,028,479,826.61-406,196,435.36

Finding the Fourth Proportional to 745,284,905.97, 1,028,479,826.61 and 406,196,435.36

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Solution

The fourth proportional to 745,284,905.97, 1,028,479,826.61 and 406,196,435.36 is: 560,543,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,284,905.97 : 1,028,479,826.61 = 406,196,435.36 : x
  2. Step 2: Convert to fraction form
    745,284,905.97/1,028,479,826.61 = 406,196,435.36/x
  3. Step 3: Cross multiply
    745,284,905.97x = 1,028,479,826.61 × 406,196,435.36
  4. Step 4: Simplify right side
    745,284,905.97x = 417,764,839,403,510,528
  5. Step 5: Solve for x
    x = 417,764,839,403,510,528/745,284,905.97
  6. Step 6: Final answer
    x = 560,543,808.22

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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.