Home / 86,824,431.30-130,124,672.55-66,529,071.30

Finding the Fourth Proportional to 86,824,431.30, 130,124,672.55 and 66,529,071.30

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Solution

The fourth proportional to 86,824,431.30, 130,124,672.55 and 66,529,071.30 is: 99,707,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824,431.30 : 130,124,672.55 = 66,529,071.30 : x
  2. Step 2: Convert to fraction form
    86,824,431.30/130,124,672.55 = 66,529,071.30/x
  3. Step 3: Cross multiply
    86,824,431.30x = 130,124,672.55 × 66,529,071.30
  4. Step 4: Simplify right side
    86,824,431.30x = 8,657,073,617,968,102
  5. Step 5: Solve for x
    x = 8,657,073,617,968,102/86,824,431.30
  6. Step 6: Final answer
    x = 99,707,806.76

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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.