Home / 1,116,723,979.80-1,675,085,969.70-298,836,280.80

Finding the Fourth Proportional to 1,116,723,979.80, 1,675,085,969.70 and 298,836,280.80

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Solution

The fourth proportional to 1,116,723,979.80, 1,675,085,969.70 and 298,836,280.80 is: 448,254,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,723,979.80 : 1,675,085,969.70 = 298,836,280.80 : x
  2. Step 2: Convert to fraction form
    1,116,723,979.80/1,675,085,969.70 = 298,836,280.80/x
  3. Step 3: Cross multiply
    1,116,723,979.80x = 1,675,085,969.70 × 298,836,280.80
  4. Step 4: Simplify right side
    1,116,723,979.80x = 500,576,461,205,409,536
  5. Step 5: Solve for x
    x = 500,576,461,205,409,536/1,116,723,979.80
  6. Step 6: Final answer
    x = 448,254,421.20

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Double scale
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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.