Home / 131,220,712.80-196,831,069.20-105,711,544.80

Finding the Fourth Proportional to 131,220,712.80, 196,831,069.20 and 105,711,544.80

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Solution

The fourth proportional to 131,220,712.80, 196,831,069.20 and 105,711,544.80 is: 158,567,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,712.80 : 196,831,069.20 = 105,711,544.80 : x
  2. Step 2: Convert to fraction form
    131,220,712.80/196,831,069.20 = 105,711,544.80/x
  3. Step 3: Cross multiply
    131,220,712.80x = 196,831,069.20 × 105,711,544.80
  4. Step 4: Simplify right side
    131,220,712.80x = 20,807,316,389,767,700
  5. Step 5: Solve for x
    x = 20,807,316,389,767,700/131,220,712.80
  6. Step 6: Final answer
    x = 158,567,317.20

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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.