Home / 142,148,043.09-196,165,597.23-83,411,686.89

Finding the Fourth Proportional to 142,148,043.09, 196,165,597.23 and 83,411,686.89

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Solution

The fourth proportional to 142,148,043.09, 196,165,597.23 and 83,411,686.89 is: 115,108,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,148,043.09 : 196,165,597.23 = 83,411,686.89 : x
  2. Step 2: Convert to fraction form
    142,148,043.09/196,165,597.23 = 83,411,686.89/x
  3. Step 3: Cross multiply
    142,148,043.09x = 196,165,597.23 × 83,411,686.89
  4. Step 4: Simplify right side
    142,148,043.09x = 16,362,503,374,738,610
  5. Step 5: Solve for x
    x = 16,362,503,374,738,610/142,148,043.09
  6. Step 6: Final answer
    x = 115,108,889.43

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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.