Home / 853,076,719.80-1,279,615,079.70-724,255,421.40

Finding the Fourth Proportional to 853,076,719.80, 1,279,615,079.70 and 724,255,421.40

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Solution

The fourth proportional to 853,076,719.80, 1,279,615,079.70 and 724,255,421.40 is: 1,086,383,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,076,719.80 : 1,279,615,079.70 = 724,255,421.40 : x
  2. Step 2: Convert to fraction form
    853,076,719.80/1,279,615,079.70 = 724,255,421.40/x
  3. Step 3: Cross multiply
    853,076,719.80x = 1,279,615,079.70 × 724,255,421.40
  4. Step 4: Simplify right side
    853,076,719.80x = 926,768,158,777,918,080
  5. Step 5: Solve for x
    x = 926,768,158,777,918,080/853,076,719.80
  6. Step 6: Final answer
    x = 1,086,383,132.10

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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.