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Finding the Fourth Proportional to 8,664,478.40, 13,006,048.80 and 4,885,342.40

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Solution

The fourth proportional to 8,664,478.40, 13,006,048.80 and 4,885,342.40 is: 7,333,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664,478.40 : 13,006,048.80 = 4,885,342.40 : x
  2. Step 2: Convert to fraction form
    8,664,478.40/13,006,048.80 = 4,885,342.40/x
  3. Step 3: Cross multiply
    8,664,478.40x = 13,006,048.80 × 4,885,342.40
  4. Step 4: Simplify right side
    8,664,478.40x = 63,539,001,659,109.12
  5. Step 5: Solve for x
    x = 63,539,001,659,109.12/8,664,478.40
  6. Step 6: Final answer
    x = 7,333,274.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.