Home / 830,851,837.60-1,246,277,756.40-400,870,141.60

Finding the Fourth Proportional to 830,851,837.60, 1,246,277,756.40 and 400,870,141.60

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Solution

The fourth proportional to 830,851,837.60, 1,246,277,756.40 and 400,870,141.60 is: 601,305,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,851,837.60 : 1,246,277,756.40 = 400,870,141.60 : x
  2. Step 2: Convert to fraction form
    830,851,837.60/1,246,277,756.40 = 400,870,141.60/x
  3. Step 3: Cross multiply
    830,851,837.60x = 1,246,277,756.40 × 400,870,141.60
  4. Step 4: Simplify right side
    830,851,837.60x = 499,595,540,680,998,400
  5. Step 5: Solve for x
    x = 499,595,540,680,998,400/830,851,837.60
  6. Step 6: Final answer
    x = 601,305,212.40

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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.