Home / 808,733,999.70-1,213,100,999.55-792,609,686.10

Finding the Fourth Proportional to 808,733,999.70, 1,213,100,999.55 and 792,609,686.10

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Solution

The fourth proportional to 808,733,999.70, 1,213,100,999.55 and 792,609,686.10 is: 1,188,914,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,733,999.70 : 1,213,100,999.55 = 792,609,686.10 : x
  2. Step 2: Convert to fraction form
    808,733,999.70/1,213,100,999.55 = 792,609,686.10/x
  3. Step 3: Cross multiply
    808,733,999.70x = 1,213,100,999.55 × 792,609,686.10
  4. Step 4: Simplify right side
    808,733,999.70x = 961,515,602,460,921,728
  5. Step 5: Solve for x
    x = 961,515,602,460,921,728/808,733,999.70
  6. Step 6: Final answer
    x = 1,188,914,529.15

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1.5x scale

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.