Home / 853,076,721.80-1,279,615,082.70-724,255,423.40

Finding the Fourth Proportional to 853,076,721.80, 1,279,615,082.70 and 724,255,423.40

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Solution

The fourth proportional to 853,076,721.80, 1,279,615,082.70 and 724,255,423.40 is: 1,086,383,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,076,721.80 : 1,279,615,082.70 = 724,255,423.40 : x
  2. Step 2: Convert to fraction form
    853,076,721.80/1,279,615,082.70 = 724,255,423.40/x
  3. Step 3: Cross multiply
    853,076,721.80x = 1,279,615,082.70 × 724,255,423.40
  4. Step 4: Simplify right side
    853,076,721.80x = 926,768,163,509,914,496
  5. Step 5: Solve for x
    x = 926,768,163,509,914,496/853,076,721.80
  6. Step 6: Final answer
    x = 1,086,383,135.10

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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.