Home / 128,558,614,193.71-192,913,117,252.93-47,940,013,178.38

Finding the Fourth Proportional to 128,558,614,193.71, 192,913,117,252.93 and 47,940,013,178.38

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Solution

The fourth proportional to 128,558,614,193.71, 192,913,117,252.93 and 47,940,013,178.38 is: 71,938,060,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,558,614,193.71 : 192,913,117,252.93 = 47,940,013,178.38 : x
  2. Step 2: Convert to fraction form
    128,558,614,193.71/192,913,117,252.93 = 47,940,013,178.38/x
  3. Step 3: Cross multiply
    128,558,614,193.71x = 192,913,117,252.93 × 47,940,013,178.38
  4. Step 4: Simplify right side
    128,558,614,193.71x = 9,248,257,383,388,021,784,576
  5. Step 5: Solve for x
    x = 9,248,257,383,388,021,784,576/128,558,614,193.71
  6. Step 6: Final answer
    x = 71,938,060,637.87

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1.5x scale

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.