Home / 942,441,997.78-1,300,661,821.81-703,872,999.92

Finding the Fourth Proportional to 942,441,997.78, 1,300,661,821.81 and 703,872,999.92

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Solution

The fourth proportional to 942,441,997.78, 1,300,661,821.81 and 703,872,999.92 is: 971,413,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,441,997.78 : 1,300,661,821.81 = 703,872,999.92 : x
  2. Step 2: Convert to fraction form
    942,441,997.78/1,300,661,821.81 = 703,872,999.92/x
  3. Step 3: Cross multiply
    942,441,997.78x = 1,300,661,821.81 × 703,872,999.92
  4. Step 4: Simplify right side
    942,441,997.78x = 915,500,738,398,817,152
  5. Step 5: Solve for x
    x = 915,500,738,398,817,152/942,441,997.78
  6. Step 6: Final answer
    x = 971,413,350.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.