Home / 85,100,545,785.60-127,650,818,678.40-51,578,097,811.20

Finding the Fourth Proportional to 85,100,545,785.60, 127,650,818,678.40 and 51,578,097,811.20

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Solution

The fourth proportional to 85,100,545,785.60, 127,650,818,678.40 and 51,578,097,811.20 is: 77,367,146,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100,545,785.60 : 127,650,818,678.40 = 51,578,097,811.20 : x
  2. Step 2: Convert to fraction form
    85,100,545,785.60/127,650,818,678.40 = 51,578,097,811.20/x
  3. Step 3: Cross multiply
    85,100,545,785.60x = 127,650,818,678.40 × 51,578,097,811.20
  4. Step 4: Simplify right side
    85,100,545,785.60x = 6,583,986,411,474,270,552,064
  5. Step 5: Solve for x
    x = 6,583,986,411,474,270,552,064/85,100,545,785.60
  6. Step 6: Final answer
    x = 77,367,146,716.80

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Double scale
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Similar ratio
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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.