Home / 81,134,784,059.60-121,702,176,089.40-66,429,410,056.40

Finding the Fourth Proportional to 81,134,784,059.60, 121,702,176,089.40 and 66,429,410,056.40

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Solution

The fourth proportional to 81,134,784,059.60, 121,702,176,089.40 and 66,429,410,056.40 is: 99,644,115,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134,784,059.60 : 121,702,176,089.40 = 66,429,410,056.40 : x
  2. Step 2: Convert to fraction form
    81,134,784,059.60/121,702,176,089.40 = 66,429,410,056.40/x
  3. Step 3: Cross multiply
    81,134,784,059.60x = 121,702,176,089.40 × 66,429,410,056.40
  4. Step 4: Simplify right side
    81,134,784,059.60x = 8,084,603,760,198,952,157,184
  5. Step 5: Solve for x
    x = 8,084,603,760,198,952,157,184/81,134,784,059.60
  6. Step 6: Final answer
    x = 99,644,115,084.60

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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.