Home / 749,088,005.20-1,123,632,007.80-628,155,653.20

Finding the Fourth Proportional to 749,088,005.20, 1,123,632,007.80 and 628,155,653.20

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Solution

The fourth proportional to 749,088,005.20, 1,123,632,007.80 and 628,155,653.20 is: 942,233,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,088,005.20 : 1,123,632,007.80 = 628,155,653.20 : x
  2. Step 2: Convert to fraction form
    749,088,005.20/1,123,632,007.80 = 628,155,653.20/x
  3. Step 3: Cross multiply
    749,088,005.20x = 1,123,632,007.80 × 628,155,653.20
  4. Step 4: Simplify right side
    749,088,005.20x = 705,815,797,816,036,480
  5. Step 5: Solve for x
    x = 705,815,797,816,036,480/749,088,005.20
  6. Step 6: Final answer
    x = 942,233,479.80

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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.