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Finding the Fourth Proportional to 6,409,645.60, 8,845,416.40 and 3,508,988.62

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Solution

The fourth proportional to 6,409,645.60, 8,845,416.40 and 3,508,988.62 is: 4,842,462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409,645.60 : 8,845,416.40 = 3,508,988.62 : x
  2. Step 2: Convert to fraction form
    6,409,645.60/8,845,416.40 = 3,508,988.62/x
  3. Step 3: Cross multiply
    6,409,645.60x = 8,845,416.40 × 3,508,988.62
  4. Step 4: Simplify right side
    6,409,645.60x = 31,038,465,486,761.37
  5. Step 5: Solve for x
    x = 31,038,465,486,761.37/6,409,645.60
  6. Step 6: Final answer
    x = 4,842,462.04

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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.