Home / 724,921,334.60-1,087,382,001.90-449,422,320.20

Finding the Fourth Proportional to 724,921,334.60, 1,087,382,001.90 and 449,422,320.20

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Solution

The fourth proportional to 724,921,334.60, 1,087,382,001.90 and 449,422,320.20 is: 674,133,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,921,334.60 : 1,087,382,001.90 = 449,422,320.20 : x
  2. Step 2: Convert to fraction form
    724,921,334.60/1,087,382,001.90 = 449,422,320.20/x
  3. Step 3: Cross multiply
    724,921,334.60x = 1,087,382,001.90 × 449,422,320.20
  4. Step 4: Simplify right side
    724,921,334.60x = 488,693,742,237,618,816
  5. Step 5: Solve for x
    x = 488,693,742,237,618,816/724,921,334.60
  6. Step 6: Final answer
    x = 674,133,480.30

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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.