Home / 86,906,055.20-130,374,829.20-43,666,440.80

Finding the Fourth Proportional to 86,906,055.20, 130,374,829.20 and 43,666,440.80

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Solution

The fourth proportional to 86,906,055.20, 130,374,829.20 and 43,666,440.80 is: 65,507,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,906,055.20 : 130,374,829.20 = 43,666,440.80 : x
  2. Step 2: Convert to fraction form
    86,906,055.20/130,374,829.20 = 43,666,440.80/x
  3. Step 3: Cross multiply
    86,906,055.20x = 130,374,829.20 × 43,666,440.80
  4. Step 4: Simplify right side
    86,906,055.20x = 5,693,004,761,071,911
  5. Step 5: Solve for x
    x = 5,693,004,761,071,911/86,906,055.20
  6. Step 6: Final answer
    x = 65,507,573.07

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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.