Home / 858,748,993.75-1,185,124,232.46-646,681,676.93

Finding the Fourth Proportional to 858,748,993.75, 1,185,124,232.46 and 646,681,676.93

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Solution

The fourth proportional to 858,748,993.75, 1,185,124,232.46 and 646,681,676.93 is: 892,458,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,748,993.75 : 1,185,124,232.46 = 646,681,676.93 : x
  2. Step 2: Convert to fraction form
    858,748,993.75/1,185,124,232.46 = 646,681,676.93/x
  3. Step 3: Cross multiply
    858,748,993.75x = 1,185,124,232.46 × 646,681,676.93
  4. Step 4: Simplify right side
    858,748,993.75x = 766,398,126,017,611,904
  5. Step 5: Solve for x
    x = 766,398,126,017,611,904/858,748,993.75
  6. Step 6: Final answer
    x = 892,458,834.42

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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.