Home / 787,968,007.20-1,181,952,010.80-723,470,752.80

Finding the Fourth Proportional to 787,968,007.20, 1,181,952,010.80 and 723,470,752.80

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Solution

The fourth proportional to 787,968,007.20, 1,181,952,010.80 and 723,470,752.80 is: 1,085,206,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,007.20 : 1,181,952,010.80 = 723,470,752.80 : x
  2. Step 2: Convert to fraction form
    787,968,007.20/1,181,952,010.80 = 723,470,752.80/x
  3. Step 3: Cross multiply
    787,968,007.20x = 1,181,952,010.80 × 723,470,752.80
  4. Step 4: Simplify right side
    787,968,007.20x = 855,107,711,026,949,632
  5. Step 5: Solve for x
    x = 855,107,711,026,949,632/787,968,007.20
  6. Step 6: Final answer
    x = 1,085,206,129.20

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1.5x scale

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.