Home / 85,900,558.99-128,871,013.57-28,392,824.01

Finding the Fourth Proportional to 85,900,558.99, 128,871,013.57 and 28,392,824.01

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Solution

The fourth proportional to 85,900,558.99, 128,871,013.57 and 28,392,824.01 is: 42,595,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,900,558.99 : 128,871,013.57 = 28,392,824.01 : x
  2. Step 2: Convert to fraction form
    85,900,558.99/128,871,013.57 = 28,392,824.01/x
  3. Step 3: Cross multiply
    85,900,558.99x = 128,871,013.57 × 28,392,824.01
  4. Step 4: Simplify right side
    85,900,558.99x = 3,659,012,008,141,368
  5. Step 5: Solve for x
    x = 3,659,012,008,141,368/85,900,558.99
  6. Step 6: Final answer
    x = 42,595,904.51

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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.