Home / 128,765,305.60-193,147,958.40-98,532,217.60

Finding the Fourth Proportional to 128,765,305.60, 193,147,958.40 and 98,532,217.60

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Solution

The fourth proportional to 128,765,305.60, 193,147,958.40 and 98,532,217.60 is: 147,798,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,305.60 : 193,147,958.40 = 98,532,217.60 : x
  2. Step 2: Convert to fraction form
    128,765,305.60/193,147,958.40 = 98,532,217.60/x
  3. Step 3: Cross multiply
    128,765,305.60x = 193,147,958.40 × 98,532,217.60
  4. Step 4: Simplify right side
    128,765,305.60x = 19,031,296,666,064,548
  5. Step 5: Solve for x
    x = 19,031,296,666,064,548/128,765,305.60
  6. Step 6: Final answer
    x = 147,798,326.40

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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.