Home / 85,648,839,431.02-118,198,588,249.56-51,360,128,519.56

Finding the Fourth Proportional to 85,648,839,431.02, 118,198,588,249.56 and 51,360,128,519.56

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Solution

The fourth proportional to 85,648,839,431.02, 118,198,588,249.56 and 51,360,128,519.56 is: 70,878,890,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,648,839,431.02 : 118,198,588,249.56 = 51,360,128,519.56 : x
  2. Step 2: Convert to fraction form
    85,648,839,431.02/118,198,588,249.56 = 51,360,128,519.56/x
  3. Step 3: Cross multiply
    85,648,839,431.02x = 118,198,588,249.56 × 51,360,128,519.56
  4. Step 4: Simplify right side
    85,648,839,431.02x = 6,070,694,683,327,955,206,144
  5. Step 5: Solve for x
    x = 6,070,694,683,327,955,206,144/85,648,839,431.02
  6. Step 6: Final answer
    x = 70,878,890,171.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.