Home / 1,213,853,621.60-1,820,780,432.40-907,743,605.60

Finding the Fourth Proportional to 1,213,853,621.60, 1,820,780,432.40 and 907,743,605.60

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Solution

The fourth proportional to 1,213,853,621.60, 1,820,780,432.40 and 907,743,605.60 is: 1,361,615,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,853,621.60 : 1,820,780,432.40 = 907,743,605.60 : x
  2. Step 2: Convert to fraction form
    1,213,853,621.60/1,820,780,432.40 = 907,743,605.60/x
  3. Step 3: Cross multiply
    1,213,853,621.60x = 1,820,780,432.40 × 907,743,605.60
  4. Step 4: Simplify right side
    1,213,853,621.60x = 1,652,801,794,712,703,232
  5. Step 5: Solve for x
    x = 1,652,801,794,712,703,232/1,213,853,621.60
  6. Step 6: Final answer
    x = 1,361,615,408.40

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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.