Home / 76,683,057.47-105,831,700.04-43,193,638.79

Finding the Fourth Proportional to 76,683,057.47, 105,831,700.04 and 43,193,638.79

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Solution

The fourth proportional to 76,683,057.47, 105,831,700.04 and 43,193,638.79 is: 59,612,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,683,057.47 : 105,831,700.04 = 43,193,638.79 : x
  2. Step 2: Convert to fraction form
    76,683,057.47/105,831,700.04 = 43,193,638.79/x
  3. Step 3: Cross multiply
    76,683,057.47x = 105,831,700.04 × 43,193,638.79
  4. Step 4: Simplify right side
    76,683,057.47x = 4,571,256,223,843,420
  5. Step 5: Solve for x
    x = 4,571,256,223,843,420/76,683,057.47
  6. Step 6: Final answer
    x = 59,612,336.48

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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.