Home / 842,546,998.80-1,263,316,613.40-434,400,310.80

Finding the Fourth Proportional to 842,546,998.80, 1,263,316,613.40 and 434,400,310.80

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Solution

The fourth proportional to 842,546,998.80, 1,263,316,613.40 and 434,400,310.80 is: 651,340,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,546,998.80 : 1,263,316,613.40 = 434,400,310.80 : x
  2. Step 2: Convert to fraction form
    842,546,998.80/1,263,316,613.40 = 434,400,310.80/x
  3. Step 3: Cross multiply
    842,546,998.80x = 1,263,316,613.40 × 434,400,310.80
  4. Step 4: Simplify right side
    842,546,998.80x = 548,785,129,499,763,520
  5. Step 5: Solve for x
    x = 548,785,129,499,763,520/842,546,998.80
  6. Step 6: Final answer
    x = 651,340,673.32

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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.