Home / 1,145,127,221.80-1,718,586,627.90-531,787,445.80

Finding the Fourth Proportional to 1,145,127,221.80, 1,718,586,627.90 and 531,787,445.80

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Solution

The fourth proportional to 1,145,127,221.80, 1,718,586,627.90 and 531,787,445.80 is: 798,097,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,127,221.80 : 1,718,586,627.90 = 531,787,445.80 : x
  2. Step 2: Convert to fraction form
    1,145,127,221.80/1,718,586,627.90 = 531,787,445.80/x
  3. Step 3: Cross multiply
    1,145,127,221.80x = 1,718,586,627.90 × 531,787,445.80
  4. Step 4: Simplify right side
    1,145,127,221.80x = 913,922,793,236,976,128
  5. Step 5: Solve for x
    x = 913,922,793,236,976,128/1,145,127,221.80
  6. Step 6: Final answer
    x = 798,097,168.45

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Double scale
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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.