Home / 81,671,333,557.70-122,507,000,336.55-19,633,036,981.70

Finding the Fourth Proportional to 81,671,333,557.70, 122,507,000,336.55 and 19,633,036,981.70

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Solution

The fourth proportional to 81,671,333,557.70, 122,507,000,336.55 and 19,633,036,981.70 is: 29,449,555,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,671,333,557.70 : 122,507,000,336.55 = 19,633,036,981.70 : x
  2. Step 2: Convert to fraction form
    81,671,333,557.70/122,507,000,336.55 = 19,633,036,981.70/x
  3. Step 3: Cross multiply
    81,671,333,557.70x = 122,507,000,336.55 × 19,633,036,981.70
  4. Step 4: Simplify right side
    81,671,333,557.70x = 2,405,184,468,124,620,554,240
  5. Step 5: Solve for x
    x = 2,405,184,468,124,620,554,240/81,671,333,557.70
  6. Step 6: Final answer
    x = 29,449,555,472.55

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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.