Home / 8,671,912-13,068,816.32-7,808,403.40

Finding the Fourth Proportional to 8,671,912, 13,068,816.32 and 7,808,403.40

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Solution

The fourth proportional to 8,671,912, 13,068,816.32 and 7,808,403.40 is: 11,767,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671,912 : 13,068,816.32 = 7,808,403.40 : x
  2. Step 2: Convert to fraction form
    8,671,912/13,068,816.32 = 7,808,403.40/x
  3. Step 3: Cross multiply
    8,671,912x = 13,068,816.32 × 7,808,403.40
  4. Step 4: Simplify right side
    8,671,912x = 102,046,589,787,063.50
  5. Step 5: Solve for x
    x = 102,046,589,787,063.50/8,671,912
  6. Step 6: Final answer
    x = 11,767,484.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.