Home / 724,019,904.80-1,086,029,857.20-239,345,712.80

Finding the Fourth Proportional to 724,019,904.80, 1,086,029,857.20 and 239,345,712.80

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Solution

The fourth proportional to 724,019,904.80, 1,086,029,857.20 and 239,345,712.80 is: 359,018,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,019,904.80 : 1,086,029,857.20 = 239,345,712.80 : x
  2. Step 2: Convert to fraction form
    724,019,904.80/1,086,029,857.20 = 239,345,712.80/x
  3. Step 3: Cross multiply
    724,019,904.80x = 1,086,029,857.20 × 239,345,712.80
  4. Step 4: Simplify right side
    724,019,904.80x = 259,936,590,293,616,224
  5. Step 5: Solve for x
    x = 259,936,590,293,616,224/724,019,904.80
  6. Step 6: Final answer
    x = 359,018,569.20

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Double scale
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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.