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Finding the Fourth Proportional to 145,221,402.60, 203,820,147 and 145,221,402.60

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Solution

The fourth proportional to 145,221,402.60, 203,820,147 and 145,221,402.60 is: 203,820,147

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,221,402.60 : 203,820,147 = 145,221,402.60 : x
  2. Step 2: Convert to fraction form
    145,221,402.60/203,820,147 = 145,221,402.60/x
  3. Step 3: Cross multiply
    145,221,402.60x = 203,820,147 × 145,221,402.60
  4. Step 4: Simplify right side
    145,221,402.60x = 29,599,047,625,478,180
  5. Step 5: Solve for x
    x = 29,599,047,625,478,180/145,221,402.60
  6. Step 6: Final answer
    x = 203,820,147

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.