Home / 142,372,994.94-196,476,279.48-83,638,135.62

Finding the Fourth Proportional to 142,372,994.94, 196,476,279.48 and 83,638,135.62

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Solution

The fourth proportional to 142,372,994.94, 196,476,279.48 and 83,638,135.62 is: 115,421,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,372,994.94 : 196,476,279.48 = 83,638,135.62 : x
  2. Step 2: Convert to fraction form
    142,372,994.94/196,476,279.48 = 83,638,135.62/x
  3. Step 3: Cross multiply
    142,372,994.94x = 196,476,279.48 × 83,638,135.62
  4. Step 4: Simplify right side
    142,372,994.94x = 16,432,909,709,261,264
  5. Step 5: Solve for x
    x = 16,432,909,709,261,264/142,372,994.94
  6. Step 6: Final answer
    x = 115,421,535.64

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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.