Home / 139,831,095,152.28-192,966,548,362.62-78,031,016,838.38

Finding the Fourth Proportional to 139,831,095,152.28, 192,966,548,362.62 and 78,031,016,838.38

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Solution

The fourth proportional to 139,831,095,152.28, 192,966,548,362.62 and 78,031,016,838.38 is: 107,682,600,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831,095,152.28 : 192,966,548,362.62 = 78,031,016,838.38 : x
  2. Step 2: Convert to fraction form
    139,831,095,152.28/192,966,548,362.62 = 78,031,016,838.38/x
  3. Step 3: Cross multiply
    139,831,095,152.28x = 192,966,548,362.62 × 78,031,016,838.38
  4. Step 4: Simplify right side
    139,831,095,152.28x = 15,057,375,984,527,670,771,712
  5. Step 5: Solve for x
    x = 15,057,375,984,527,670,771,712/139,831,095,152.28
  6. Step 6: Final answer
    x = 107,682,600,698.58

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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.