Home / 105,220,984.80-157,831,477.20-86,325,304.80

Finding the Fourth Proportional to 105,220,984.80, 157,831,477.20 and 86,325,304.80

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Solution

The fourth proportional to 105,220,984.80, 157,831,477.20 and 86,325,304.80 is: 129,487,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,220,984.80 : 157,831,477.20 = 86,325,304.80 : x
  2. Step 2: Convert to fraction form
    105,220,984.80/157,831,477.20 = 86,325,304.80/x
  3. Step 3: Cross multiply
    105,220,984.80x = 157,831,477.20 × 86,325,304.80
  4. Step 4: Simplify right side
    105,220,984.80x = 13,624,850,376,324,250
  5. Step 5: Solve for x
    x = 13,624,850,376,324,250/105,220,984.80
  6. Step 6: Final answer
    x = 129,487,957.20

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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.