Home / 128,765,326.60-193,147,989.90-98,532,238.60

Finding the Fourth Proportional to 128,765,326.60, 193,147,989.90 and 98,532,238.60

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Solution

The fourth proportional to 128,765,326.60, 193,147,989.90 and 98,532,238.60 is: 147,798,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,326.60 : 193,147,989.90 = 98,532,238.60 : x
  2. Step 2: Convert to fraction form
    128,765,326.60/193,147,989.90 = 98,532,238.60/x
  3. Step 3: Cross multiply
    128,765,326.60x = 193,147,989.90 × 98,532,238.60
  4. Step 4: Simplify right side
    128,765,326.60x = 19,031,303,825,937,188
  5. Step 5: Solve for x
    x = 19,031,303,825,937,188/128,765,326.60
  6. Step 6: Final answer
    x = 147,798,357.90

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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.