Home / 149,615,381.87-206,467,271.40-83,537,004.83

Finding the Fourth Proportional to 149,615,381.87, 206,467,271.40 and 83,537,004.83

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Solution

The fourth proportional to 149,615,381.87, 206,467,271.40 and 83,537,004.83 is: 115,279,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,615,381.87 : 206,467,271.40 = 83,537,004.83 : x
  2. Step 2: Convert to fraction form
    149,615,381.87/206,467,271.40 = 83,537,004.83/x
  3. Step 3: Cross multiply
    149,615,381.87x = 206,467,271.40 × 83,537,004.83
  4. Step 4: Simplify right side
    149,615,381.87x = 17,247,657,447,146,386
  5. Step 5: Solve for x
    x = 17,247,657,447,146,386/149,615,381.87
  6. Step 6: Final answer
    x = 115,279,974.77

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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.