Home / 85,293,297.60-127,939,946.40-84,017,839.20

Finding the Fourth Proportional to 85,293,297.60, 127,939,946.40 and 84,017,839.20

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Solution

The fourth proportional to 85,293,297.60, 127,939,946.40 and 84,017,839.20 is: 126,026,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,297.60 : 127,939,946.40 = 84,017,839.20 : x
  2. Step 2: Convert to fraction form
    85,293,297.60/127,939,946.40 = 84,017,839.20/x
  3. Step 3: Cross multiply
    85,293,297.60x = 127,939,946.40 × 84,017,839.20
  4. Step 4: Simplify right side
    85,293,297.60x = 10,749,237,843,891,820
  5. Step 5: Solve for x
    x = 10,749,237,843,891,820/85,293,297.60
  6. Step 6: Final answer
    x = 126,026,758.80

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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.