Home / 103,349,929.51-142,622,824.36-56,940,183.43

Finding the Fourth Proportional to 103,349,929.51, 142,622,824.36 and 56,940,183.43

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Solution

The fourth proportional to 103,349,929.51, 142,622,824.36 and 56,940,183.43 is: 78,577,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,349,929.51 : 142,622,824.36 = 56,940,183.43 : x
  2. Step 2: Convert to fraction form
    103,349,929.51/142,622,824.36 = 56,940,183.43/x
  3. Step 3: Cross multiply
    103,349,929.51x = 142,622,824.36 × 56,940,183.43
  4. Step 4: Simplify right side
    103,349,929.51x = 8,120,969,779,971,213
  5. Step 5: Solve for x
    x = 8,120,969,779,971,213/103,349,929.51
  6. Step 6: Final answer
    x = 78,577,409.96

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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.