Home / 103,775,021.70-143,211,232.28-61,962,740.40

Finding the Fourth Proportional to 103,775,021.70, 143,211,232.28 and 61,962,740.40

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Solution

The fourth proportional to 103,775,021.70, 143,211,232.28 and 61,962,740.40 is: 85,509,598.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,775,021.70 : 143,211,232.28 = 61,962,740.40 : x
  2. Step 2: Convert to fraction form
    103,775,021.70/143,211,232.28 = 61,962,740.40/x
  3. Step 3: Cross multiply
    103,775,021.70x = 143,211,232.28 × 61,962,740.40
  4. Step 4: Simplify right side
    103,775,021.70x = 8,873,760,407,819,927
  5. Step 5: Solve for x
    x = 8,873,760,407,819,927/103,775,021.70
  6. Step 6: Final answer
    x = 85,509,598.19

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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.