Home / 138,097,339.02-190,573,389.09-76,217,675.76

Finding the Fourth Proportional to 138,097,339.02, 190,573,389.09 and 76,217,675.76

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Solution

The fourth proportional to 138,097,339.02, 190,573,389.09 and 76,217,675.76 is: 105,179,874.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,097,339.02 : 190,573,389.09 = 76,217,675.76 : x
  2. Step 2: Convert to fraction form
    138,097,339.02/190,573,389.09 = 76,217,675.76/x
  3. Step 3: Cross multiply
    138,097,339.02x = 190,573,389.09 × 76,217,675.76
  4. Step 4: Simplify right side
    138,097,339.02x = 14,525,060,778,145,942
  5. Step 5: Solve for x
    x = 14,525,060,778,145,942/138,097,339.02
  6. Step 6: Final answer
    x = 105,179,874.44

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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.