Home / 142,846,676.40-197,130,068.28-79,268,320.56

Finding the Fourth Proportional to 142,846,676.40, 197,130,068.28 and 79,268,320.56

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Solution

The fourth proportional to 142,846,676.40, 197,130,068.28 and 79,268,320.56 is: 109,391,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,846,676.40 : 197,130,068.28 = 79,268,320.56 : x
  2. Step 2: Convert to fraction form
    142,846,676.40/197,130,068.28 = 79,268,320.56/x
  3. Step 3: Cross multiply
    142,846,676.40x = 197,130,068.28 × 79,268,320.56
  4. Step 4: Simplify right side
    142,846,676.40x = 15,626,169,444,433,728
  5. Step 5: Solve for x
    x = 15,626,169,444,433,728/142,846,676.40
  6. Step 6: Final answer
    x = 109,391,200.68

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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.