Home / 1,008,609,077.60-1,512,913,616.40-394,989,365.60

Finding the Fourth Proportional to 1,008,609,077.60, 1,512,913,616.40 and 394,989,365.60

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Solution

The fourth proportional to 1,008,609,077.60, 1,512,913,616.40 and 394,989,365.60 is: 592,484,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,609,077.60 : 1,512,913,616.40 = 394,989,365.60 : x
  2. Step 2: Convert to fraction form
    1,008,609,077.60/1,512,913,616.40 = 394,989,365.60/x
  3. Step 3: Cross multiply
    1,008,609,077.60x = 1,512,913,616.40 × 394,989,365.60
  4. Step 4: Simplify right side
    1,008,609,077.60x = 597,584,789,549,437,824
  5. Step 5: Solve for x
    x = 597,584,789,549,437,824/1,008,609,077.60
  6. Step 6: Final answer
    x = 592,484,048.40

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Double scale
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Similar ratio
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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.