Home / 81,134,784,048.60-121,702,176,072.90-66,429,410,045.40

Finding the Fourth Proportional to 81,134,784,048.60, 121,702,176,072.90 and 66,429,410,045.40

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Solution

The fourth proportional to 81,134,784,048.60, 121,702,176,072.90 and 66,429,410,045.40 is: 99,644,115,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134,784,048.60 : 121,702,176,072.90 = 66,429,410,045.40 : x
  2. Step 2: Convert to fraction form
    81,134,784,048.60/121,702,176,072.90 = 66,429,410,045.40/x
  3. Step 3: Cross multiply
    81,134,784,048.60x = 121,702,176,072.90 × 66,429,410,045.40
  4. Step 4: Simplify right side
    81,134,784,048.60x = 8,084,603,757,764,142,956,544
  5. Step 5: Solve for x
    x = 8,084,603,757,764,142,956,544/81,134,784,048.60
  6. Step 6: Final answer
    x = 99,644,115,068.10

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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.