Home / 40,416,985.32-55,775,460.11-21,832,124.50

Finding the Fourth Proportional to 40,416,985.32, 55,775,460.11 and 21,832,124.50

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Solution

The fourth proportional to 40,416,985.32, 55,775,460.11 and 21,832,124.50 is: 30,128,342.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,416,985.32 : 55,775,460.11 = 21,832,124.50 : x
  2. Step 2: Convert to fraction form
    40,416,985.32/55,775,460.11 = 21,832,124.50/x
  3. Step 3: Cross multiply
    40,416,985.32x = 55,775,460.11 × 21,832,124.50
  4. Step 4: Simplify right side
    40,416,985.32x = 1,217,696,789,166,303.75
  5. Step 5: Solve for x
    x = 1,217,696,789,166,303.75/40,416,985.32
  6. Step 6: Final answer
    x = 30,128,342.81

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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.