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Finding the Fourth Proportional to 839,809,926.80, 1,259,714,890.20 and 294,354,630.80

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Solution

The fourth proportional to 839,809,926.80, 1,259,714,890.20 and 294,354,630.80 is: 441,531,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,926.80 : 1,259,714,890.20 = 294,354,630.80 : x
  2. Step 2: Convert to fraction form
    839,809,926.80/1,259,714,890.20 = 294,354,630.80/x
  3. Step 3: Cross multiply
    839,809,926.80x = 1,259,714,890.20 × 294,354,630.80
  4. Step 4: Simplify right side
    839,809,926.80x = 370,802,911,418,083,584
  5. Step 5: Solve for x
    x = 370,802,911,418,083,584/839,809,926.80
  6. Step 6: Final answer
    x = 441,531,946.20

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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.