Home / 90,761,188.84-136,143,649.50-30,177,442.28

Finding the Fourth Proportional to 90,761,188.84, 136,143,649.50 and 30,177,442.28

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Solution

The fourth proportional to 90,761,188.84, 136,143,649.50 and 30,177,442.28 is: 45,266,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,761,188.84 : 136,143,649.50 = 30,177,442.28 : x
  2. Step 2: Convert to fraction form
    90,761,188.84/136,143,649.50 = 30,177,442.28/x
  3. Step 3: Cross multiply
    90,761,188.84x = 136,143,649.50 × 30,177,442.28
  4. Step 4: Simplify right side
    90,761,188.84x = 4,108,467,124,574,801
  5. Step 5: Solve for x
    x = 4,108,467,124,574,801/90,761,188.84
  6. Step 6: Final answer
    x = 45,266,783.93

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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.