Home / 83,990,401.60-125,985,602.40-71,897,166.40

Finding the Fourth Proportional to 83,990,401.60, 125,985,602.40 and 71,897,166.40

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Solution

The fourth proportional to 83,990,401.60, 125,985,602.40 and 71,897,166.40 is: 107,845,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990,401.60 : 125,985,602.40 = 71,897,166.40 : x
  2. Step 2: Convert to fraction form
    83,990,401.60/125,985,602.40 = 71,897,166.40/x
  3. Step 3: Cross multiply
    83,990,401.60x = 125,985,602.40 × 71,897,166.40
  4. Step 4: Simplify right side
    83,990,401.60x = 9,058,007,819,757,040
  5. Step 5: Solve for x
    x = 9,058,007,819,757,040/83,990,401.60
  6. Step 6: Final answer
    x = 107,845,749.60

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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.