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Finding the Fourth Proportional to 285,150,686,659.20, 427,726,029,988.80 and 285,150,686,659.20

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Solution

The fourth proportional to 285,150,686,659.20, 427,726,029,988.80 and 285,150,686,659.20 is: 427,726,029,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,150,686,659.20 : 427,726,029,988.80 = 285,150,686,659.20 : x
  2. Step 2: Convert to fraction form
    285,150,686,659.20/427,726,029,988.80 = 285,150,686,659.20/x
  3. Step 3: Cross multiply
    285,150,686,659.20x = 427,726,029,988.80 × 285,150,686,659.20
  4. Step 4: Simplify right side
    285,150,686,659.20x = 121,966,371,153,319,886,323,712
  5. Step 5: Solve for x
    x = 121,966,371,153,319,886,323,712/285,150,686,659.20
  6. Step 6: Final answer
    x = 427,726,029,988.80

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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.