Home / 142,083,011.32-196,074,553.91-76,892,915.32

Finding the Fourth Proportional to 142,083,011.32, 196,074,553.91 and 76,892,915.32

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Solution

The fourth proportional to 142,083,011.32, 196,074,553.91 and 76,892,915.32 is: 106,112,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,083,011.32 : 196,074,553.91 = 76,892,915.32 : x
  2. Step 2: Convert to fraction form
    142,083,011.32/196,074,553.91 = 76,892,915.32/x
  3. Step 3: Cross multiply
    142,083,011.32x = 196,074,553.91 × 76,892,915.32
  4. Step 4: Simplify right side
    142,083,011.32x = 15,076,744,069,333,754
  5. Step 5: Solve for x
    x = 15,076,744,069,333,754/142,083,011.32
  6. Step 6: Final answer
    x = 106,112,222.21

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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.