Home / 842,546,999.30-1,263,316,614.15-434,400,311.30

Finding the Fourth Proportional to 842,546,999.30, 1,263,316,614.15 and 434,400,311.30

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Solution

The fourth proportional to 842,546,999.30, 1,263,316,614.15 and 434,400,311.30 is: 651,340,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,546,999.30 : 1,263,316,614.15 = 434,400,311.30 : x
  2. Step 2: Convert to fraction form
    842,546,999.30/1,263,316,614.15 = 434,400,311.30/x
  3. Step 3: Cross multiply
    842,546,999.30x = 1,263,316,614.15 × 434,400,311.30
  4. Step 4: Simplify right side
    842,546,999.30x = 548,785,130,457,222,016
  5. Step 5: Solve for x
    x = 548,785,130,457,222,016/842,546,999.30
  6. Step 6: Final answer
    x = 651,340,674.07

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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.