Home / 141,621,981.63-212,198,128.22-86,121,933.36

Finding the Fourth Proportional to 141,621,981.63, 212,198,128.22 and 86,121,933.36

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Solution

The fourth proportional to 141,621,981.63, 212,198,128.22 and 86,121,933.36 is: 129,040,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,621,981.63 : 212,198,128.22 = 86,121,933.36 : x
  2. Step 2: Convert to fraction form
    141,621,981.63/212,198,128.22 = 86,121,933.36/x
  3. Step 3: Cross multiply
    141,621,981.63x = 212,198,128.22 × 86,121,933.36
  4. Step 4: Simplify right side
    141,621,981.63x = 18,274,913,057,099,136
  5. Step 5: Solve for x
    x = 18,274,913,057,099,136/141,621,981.63
  6. Step 6: Final answer
    x = 129,040,088.60

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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.