Home / 138,611,756.06-191,285,735.02-76,733,127.98

Finding the Fourth Proportional to 138,611,756.06, 191,285,735.02 and 76,733,127.98

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Solution

The fourth proportional to 138,611,756.06, 191,285,735.02 and 76,733,127.98 is: 105,892,553.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,756.06 : 191,285,735.02 = 76,733,127.98 : x
  2. Step 2: Convert to fraction form
    138,611,756.06/191,285,735.02 = 76,733,127.98/x
  3. Step 3: Cross multiply
    138,611,756.06x = 191,285,735.02 × 76,733,127.98
  4. Step 4: Simplify right side
    138,611,756.06x = 14,677,952,785,176,148
  5. Step 5: Solve for x
    x = 14,677,952,785,176,148/138,611,756.06
  6. Step 6: Final answer
    x = 105,892,553.44

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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.