Home / 726,863,428.80-1,090,295,143.20-338,557,204.80

Finding the Fourth Proportional to 726,863,428.80, 1,090,295,143.20 and 338,557,204.80

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Solution

The fourth proportional to 726,863,428.80, 1,090,295,143.20 and 338,557,204.80 is: 507,835,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,863,428.80 : 1,090,295,143.20 = 338,557,204.80 : x
  2. Step 2: Convert to fraction form
    726,863,428.80/1,090,295,143.20 = 338,557,204.80/x
  3. Step 3: Cross multiply
    726,863,428.80x = 1,090,295,143.20 × 338,557,204.80
  4. Step 4: Simplify right side
    726,863,428.80x = 369,127,276,088,807,744
  5. Step 5: Solve for x
    x = 369,127,276,088,807,744/726,863,428.80
  6. Step 6: Final answer
    x = 507,835,807.20

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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.