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Finding the Fourth Proportional to 190,990,001.40, 286,485,002.10 and 190,990,001.40

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Solution

The fourth proportional to 190,990,001.40, 286,485,002.10 and 190,990,001.40 is: 286,485,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,990,001.40 : 286,485,002.10 = 190,990,001.40 : x
  2. Step 2: Convert to fraction form
    190,990,001.40/286,485,002.10 = 190,990,001.40/x
  3. Step 3: Cross multiply
    190,990,001.40x = 286,485,002.10 × 190,990,001.40
  4. Step 4: Simplify right side
    190,990,001.40x = 54,715,770,952,158,008
  5. Step 5: Solve for x
    x = 54,715,770,952,158,008/190,990,001.40
  6. Step 6: Final answer
    x = 286,485,002.10

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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.