Home / 1,090,428,780.80-1,636,091,068.80-400,666,476.80

Finding the Fourth Proportional to 1,090,428,780.80, 1,636,091,068.80 and 400,666,476.80

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Solution

The fourth proportional to 1,090,428,780.80, 1,636,091,068.80 and 400,666,476.80 is: 601,164,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,428,780.80 : 1,636,091,068.80 = 400,666,476.80 : x
  2. Step 2: Convert to fraction form
    1,090,428,780.80/1,636,091,068.80 = 400,666,476.80/x
  3. Step 3: Cross multiply
    1,090,428,780.80x = 1,636,091,068.80 × 400,666,476.80
  4. Step 4: Simplify right side
    1,090,428,780.80x = 655,526,844,260,042,368
  5. Step 5: Solve for x
    x = 655,526,844,260,042,368/1,090,428,780.80
  6. Step 6: Final answer
    x = 601,164,290.42

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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.