Home / 858,748,992.75-1,185,124,231.08-646,681,675.93

Finding the Fourth Proportional to 858,748,992.75, 1,185,124,231.08 and 646,681,675.93

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Solution

The fourth proportional to 858,748,992.75, 1,185,124,231.08 and 646,681,675.93 is: 892,458,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,748,992.75 : 1,185,124,231.08 = 646,681,675.93 : x
  2. Step 2: Convert to fraction form
    858,748,992.75/1,185,124,231.08 = 646,681,675.93/x
  3. Step 3: Cross multiply
    858,748,992.75x = 1,185,124,231.08 × 646,681,675.93
  4. Step 4: Simplify right side
    858,748,992.75x = 766,398,123,937,104,128
  5. Step 5: Solve for x
    x = 766,398,123,937,104,128/858,748,992.75
  6. Step 6: Final answer
    x = 892,458,833.03

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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.