Home / 140,808,878.60-194,312,570.40-78,084,816.77

Finding the Fourth Proportional to 140,808,878.60, 194,312,570.40 and 78,084,816.77

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Solution

The fourth proportional to 140,808,878.60, 194,312,570.40 and 78,084,816.77 is: 107,755,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,808,878.60 : 194,312,570.40 = 78,084,816.77 : x
  2. Step 2: Convert to fraction form
    140,808,878.60/194,312,570.40 = 78,084,816.77/x
  3. Step 3: Cross multiply
    140,808,878.60x = 194,312,570.40 × 78,084,816.77
  4. Step 4: Simplify right side
    140,808,878.60x = 15,172,861,454,820,164
  5. Step 5: Solve for x
    x = 15,172,861,454,820,164/140,808,878.60
  6. Step 6: Final answer
    x = 107,755,005.27

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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.