Home / 140,446,611.51-193,808,528.05-78,554,992.65

Finding the Fourth Proportional to 140,446,611.51, 193,808,528.05 and 78,554,992.65

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Solution

The fourth proportional to 140,446,611.51, 193,808,528.05 and 78,554,992.65 is: 108,401,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,446,611.51 : 193,808,528.05 = 78,554,992.65 : x
  2. Step 2: Convert to fraction form
    140,446,611.51/193,808,528.05 = 78,554,992.65/x
  3. Step 3: Cross multiply
    140,446,611.51x = 193,808,528.05 × 78,554,992.65
  4. Step 4: Simplify right side
    140,446,611.51x = 15,224,627,496,475,070
  5. Step 5: Solve for x
    x = 15,224,627,496,475,070/140,446,611.51
  6. Step 6: Final answer
    x = 108,401,529.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.