Home / 919,554,176.20-1,379,331,264.30-819,784,985.80

Finding the Fourth Proportional to 919,554,176.20, 1,379,331,264.30 and 819,784,985.80

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Solution

The fourth proportional to 919,554,176.20, 1,379,331,264.30 and 819,784,985.80 is: 1,229,677,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,554,176.20 : 1,379,331,264.30 = 819,784,985.80 : x
  2. Step 2: Convert to fraction form
    919,554,176.20/1,379,331,264.30 = 819,784,985.80/x
  3. Step 3: Cross multiply
    919,554,176.20x = 1,379,331,264.30 × 819,784,985.80
  4. Step 4: Simplify right side
    919,554,176.20x = 1,130,755,060,917,671,424
  5. Step 5: Solve for x
    x = 1,130,755,060,917,671,424/919,554,176.20
  6. Step 6: Final answer
    x = 1,229,677,478.70

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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.