Home / 103,389,978.46-142,699,342.36-61,598,525.58

Finding the Fourth Proportional to 103,389,978.46, 142,699,342.36 and 61,598,525.58

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Solution

The fourth proportional to 103,389,978.46, 142,699,342.36 and 61,598,525.58 is: 85,018,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,389,978.46 : 142,699,342.36 = 61,598,525.58 : x
  2. Step 2: Convert to fraction form
    103,389,978.46/142,699,342.36 = 61,598,525.58/x
  3. Step 3: Cross multiply
    103,389,978.46x = 142,699,342.36 × 61,598,525.58
  4. Step 4: Simplify right side
    103,389,978.46x = 8,790,069,090,611,638
  5. Step 5: Solve for x
    x = 8,790,069,090,611,638/103,389,978.46
  6. Step 6: Final answer
    x = 85,018,579.38

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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.