Home / 726,863,430.30-1,090,295,145.45-338,557,206.30

Finding the Fourth Proportional to 726,863,430.30, 1,090,295,145.45 and 338,557,206.30

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Solution

The fourth proportional to 726,863,430.30, 1,090,295,145.45 and 338,557,206.30 is: 507,835,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,863,430.30 : 1,090,295,145.45 = 338,557,206.30 : x
  2. Step 2: Convert to fraction form
    726,863,430.30/1,090,295,145.45 = 338,557,206.30/x
  3. Step 3: Cross multiply
    726,863,430.30x = 1,090,295,145.45 × 338,557,206.30
  4. Step 4: Simplify right side
    726,863,430.30x = 369,127,278,486,004,160
  5. Step 5: Solve for x
    x = 369,127,278,486,004,160/726,863,430.30
  6. Step 6: Final answer
    x = 507,835,809.45

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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.