Home / 919,554,456.70-1,379,331,685.05-819,785,266.30

Finding the Fourth Proportional to 919,554,456.70, 1,379,331,685.05 and 819,785,266.30

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Solution

The fourth proportional to 919,554,456.70, 1,379,331,685.05 and 819,785,266.30 is: 1,229,677,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,554,456.70 : 1,379,331,685.05 = 819,785,266.30 : x
  2. Step 2: Convert to fraction form
    919,554,456.70/1,379,331,685.05 = 819,785,266.30/x
  3. Step 3: Cross multiply
    919,554,456.70x = 1,379,331,685.05 × 819,785,266.30
  4. Step 4: Simplify right side
    919,554,456.70x = 1,130,755,792,744,741,888
  5. Step 5: Solve for x
    x = 1,130,755,792,744,741,888/919,554,456.70
  6. Step 6: Final answer
    x = 1,229,677,899.45

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Double scale
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Similar ratio
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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.