Home / 155,118,051.80-214,062,859.32-85,504,595.30

Finding the Fourth Proportional to 155,118,051.80, 214,062,859.32 and 85,504,595.30

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Solution

The fourth proportional to 155,118,051.80, 214,062,859.32 and 85,504,595.30 is: 117,996,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,051.80 : 214,062,859.32 = 85,504,595.30 : x
  2. Step 2: Convert to fraction form
    155,118,051.80/214,062,859.32 = 85,504,595.30/x
  3. Step 3: Cross multiply
    155,118,051.80x = 214,062,859.32 × 85,504,595.30
  4. Step 4: Simplify right side
    155,118,051.80x = 18,303,358,154,917,432
  5. Step 5: Solve for x
    x = 18,303,358,154,917,432/155,118,051.80
  6. Step 6: Final answer
    x = 117,996,312.76

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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.