Home / 726,852,005.20-1,090,278,007.80-436,614,360.40

Finding the Fourth Proportional to 726,852,005.20, 1,090,278,007.80 and 436,614,360.40

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Solution

The fourth proportional to 726,852,005.20, 1,090,278,007.80 and 436,614,360.40 is: 654,921,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,852,005.20 : 1,090,278,007.80 = 436,614,360.40 : x
  2. Step 2: Convert to fraction form
    726,852,005.20/1,090,278,007.80 = 436,614,360.40/x
  3. Step 3: Cross multiply
    726,852,005.20x = 1,090,278,007.80 × 436,614,360.40
  4. Step 4: Simplify right side
    726,852,005.20x = 476,031,035,033,783,168
  5. Step 5: Solve for x
    x = 476,031,035,033,783,168/726,852,005.20
  6. Step 6: Final answer
    x = 654,921,540.60

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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.