Home / 91,115,472,285.84-136,623,384,836.16-72,349,308,074.64

Finding the Fourth Proportional to 91,115,472,285.84, 136,623,384,836.16 and 72,349,308,074.64

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Solution

The fourth proportional to 91,115,472,285.84, 136,623,384,836.16 and 72,349,308,074.64 is: 108,484,400,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,115,472,285.84 : 136,623,384,836.16 = 72,349,308,074.64 : x
  2. Step 2: Convert to fraction form
    91,115,472,285.84/136,623,384,836.16 = 72,349,308,074.64/x
  3. Step 3: Cross multiply
    91,115,472,285.84x = 136,623,384,836.16 × 72,349,308,074.64
  4. Step 4: Simplify right side
    91,115,472,285.84x = 9,884,607,359,711,438,700,544
  5. Step 5: Solve for x
    x = 9,884,607,359,711,438,700,544/91,115,472,285.84
  6. Step 6: Final answer
    x = 108,484,400,198.27

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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.