Home / 189,216,100.40-283,824,150.60-128,302,026.80

Finding the Fourth Proportional to 189,216,100.40, 283,824,150.60 and 128,302,026.80

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Solution

The fourth proportional to 189,216,100.40, 283,824,150.60 and 128,302,026.80 is: 192,453,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,216,100.40 : 283,824,150.60 = 128,302,026.80 : x
  2. Step 2: Convert to fraction form
    189,216,100.40/283,824,150.60 = 128,302,026.80/x
  3. Step 3: Cross multiply
    189,216,100.40x = 283,824,150.60 × 128,302,026.80
  4. Step 4: Simplify right side
    189,216,100.40x = 36,415,213,776,768,440
  5. Step 5: Solve for x
    x = 36,415,213,776,768,440/189,216,100.40
  6. Step 6: Final answer
    x = 192,453,040.20

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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.