Home / 86,346,237.60-129,505,169.45-31,002,615.81

Finding the Fourth Proportional to 86,346,237.60, 129,505,169.45 and 31,002,615.81

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Solution

The fourth proportional to 86,346,237.60, 129,505,169.45 and 31,002,615.81 is: 46,498,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,346,237.60 : 129,505,169.45 = 31,002,615.81 : x
  2. Step 2: Convert to fraction form
    86,346,237.60/129,505,169.45 = 31,002,615.81/x
  3. Step 3: Cross multiply
    86,346,237.60x = 129,505,169.45 × 31,002,615.81
  4. Step 4: Simplify right side
    86,346,237.60x = 4,014,999,013,712,285.50
  5. Step 5: Solve for x
    x = 4,014,999,013,712,285.50/86,346,237.60
  6. Step 6: Final answer
    x = 46,498,829.89

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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.