Home / 86,831,089.16-130,218,980.96-28,525,233.16

Finding the Fourth Proportional to 86,831,089.16, 130,218,980.96 and 28,525,233.16

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Solution

The fourth proportional to 86,831,089.16, 130,218,980.96 and 28,525,233.16 is: 42,778,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,831,089.16 : 130,218,980.96 = 28,525,233.16 : x
  2. Step 2: Convert to fraction form
    86,831,089.16/130,218,980.96 = 28,525,233.16/x
  3. Step 3: Cross multiply
    86,831,089.16x = 130,218,980.96 × 28,525,233.16
  4. Step 4: Simplify right side
    86,831,089.16x = 3,714,526,793,741,600.50
  5. Step 5: Solve for x
    x = 3,714,526,793,741,600.50/86,831,089.16
  6. Step 6: Final answer
    x = 42,778,765.41

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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.