Home / 137,732,889.60-190,064,102.40-78,992,519.04

Finding the Fourth Proportional to 137,732,889.60, 190,064,102.40 and 78,992,519.04

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Solution

The fourth proportional to 137,732,889.60, 190,064,102.40 and 78,992,519.04 is: 109,005,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732,889.60 : 190,064,102.40 = 78,992,519.04 : x
  2. Step 2: Convert to fraction form
    137,732,889.60/190,064,102.40 = 78,992,519.04/x
  3. Step 3: Cross multiply
    137,732,889.60x = 190,064,102.40 × 78,992,519.04
  4. Step 4: Simplify right side
    137,732,889.60x = 15,013,642,227,652,512
  5. Step 5: Solve for x
    x = 15,013,642,227,652,512/137,732,889.60
  6. Step 6: Final answer
    x = 109,005,498.04

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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.