Home / 86,230,903.40-129,346,355.10-43,106,762.60

Finding the Fourth Proportional to 86,230,903.40, 129,346,355.10 and 43,106,762.60

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Solution

The fourth proportional to 86,230,903.40, 129,346,355.10 and 43,106,762.60 is: 64,660,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230,903.40 : 129,346,355.10 = 43,106,762.60 : x
  2. Step 2: Convert to fraction form
    86,230,903.40/129,346,355.10 = 43,106,762.60/x
  3. Step 3: Cross multiply
    86,230,903.40x = 129,346,355.10 × 43,106,762.60
  4. Step 4: Simplify right side
    86,230,903.40x = 5,575,702,622,470,999
  5. Step 5: Solve for x
    x = 5,575,702,622,470,999/86,230,903.40
  6. Step 6: Final answer
    x = 64,660,143.90

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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.