Home / 190,606,188.72-286,030,211.22-81,432,182.28

Finding the Fourth Proportional to 190,606,188.72, 286,030,211.22 and 81,432,182.28

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Solution

The fourth proportional to 190,606,188.72, 286,030,211.22 and 81,432,182.28 is: 122,199,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,606,188.72 : 286,030,211.22 = 81,432,182.28 : x
  2. Step 2: Convert to fraction form
    190,606,188.72/286,030,211.22 = 81,432,182.28/x
  3. Step 3: Cross multiply
    190,606,188.72x = 286,030,211.22 × 81,432,182.28
  4. Step 4: Simplify right side
    190,606,188.72x = 23,292,064,297,653,944
  5. Step 5: Solve for x
    x = 23,292,064,297,653,944/190,606,188.72
  6. Step 6: Final answer
    x = 122,199,937.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.