Home / 137,905,675.20-190,311,130.35-76,028,228.10

Finding the Fourth Proportional to 137,905,675.20, 190,311,130.35 and 76,028,228.10

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Solution

The fourth proportional to 137,905,675.20, 190,311,130.35 and 76,028,228.10 is: 104,919,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,905,675.20 : 190,311,130.35 = 76,028,228.10 : x
  2. Step 2: Convert to fraction form
    137,905,675.20/190,311,130.35 = 76,028,228.10/x
  3. Step 3: Cross multiply
    137,905,675.20x = 190,311,130.35 × 76,028,228.10
  4. Step 4: Simplify right side
    137,905,675.20x = 14,469,018,028,218,632
  5. Step 5: Solve for x
    x = 14,469,018,028,218,632/137,905,675.20
  6. Step 6: Final answer
    x = 104,919,670.69

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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.