Home / 1,368,636,890.43-1,888,756,046.78-774,010,294.75

Finding the Fourth Proportional to 1,368,636,890.43, 1,888,756,046.78 and 774,010,294.75

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Solution

The fourth proportional to 1,368,636,890.43, 1,888,756,046.78 and 774,010,294.75 is: 1,068,155,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,636,890.43 : 1,888,756,046.78 = 774,010,294.75 : x
  2. Step 2: Convert to fraction form
    1,368,636,890.43/1,888,756,046.78 = 774,010,294.75/x
  3. Step 3: Cross multiply
    1,368,636,890.43x = 1,888,756,046.78 × 774,010,294.75
  4. Step 4: Simplify right side
    1,368,636,890.43x = 1,461,916,624,479,032,576
  5. Step 5: Solve for x
    x = 1,461,916,624,479,032,576/1,368,636,890.43
  6. Step 6: Final answer
    x = 1,068,155,209.54

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Double scale
Find fourth proportional to 1,368,636,891.43, 1,888,756,048.16 and 774,010,295.75
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1.5x scale

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.