Home / 86,831,081.70-130,218,969.75-28,525,225.68

Finding the Fourth Proportional to 86,831,081.70, 130,218,969.75 and 28,525,225.68

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Solution

The fourth proportional to 86,831,081.70, 130,218,969.75 and 28,525,225.68 is: 42,778,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831,081.70 : 130,218,969.75 = 28,525,225.68 : x
  2. Step 2: Convert to fraction form
    86,831,081.70/130,218,969.75 = 28,525,225.68/x
  3. Step 3: Cross multiply
    86,831,081.70x = 130,218,969.75 × 28,525,225.68
  4. Step 4: Simplify right side
    86,831,081.70x = 3,714,525,499,989,185.50
  5. Step 5: Solve for x
    x = 3,714,525,499,989,185.50/86,831,081.70
  6. Step 6: Final answer
    x = 42,778,754.19

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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.