Home / 1,090,428,634.80-1,636,090,849.80-400,666,330.80

Finding the Fourth Proportional to 1,090,428,634.80, 1,636,090,849.80 and 400,666,330.80

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Solution

The fourth proportional to 1,090,428,634.80, 1,636,090,849.80 and 400,666,330.80 is: 601,164,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,428,634.80 : 1,636,090,849.80 = 400,666,330.80 : x
  2. Step 2: Convert to fraction form
    1,090,428,634.80/1,636,090,849.80 = 400,666,330.80/x
  3. Step 3: Cross multiply
    1,090,428,634.80x = 1,636,090,849.80 × 400,666,330.80
  4. Step 4: Simplify right side
    1,090,428,634.80x = 655,526,517,644,819,968
  5. Step 5: Solve for x
    x = 655,526,517,644,819,968/1,090,428,634.80
  6. Step 6: Final answer
    x = 601,164,071.38

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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.