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Finding the Fourth Proportional to 142,984,357.20, 214,476,535.80 and 142,984,357.20

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Solution

The fourth proportional to 142,984,357.20, 214,476,535.80 and 142,984,357.20 is: 214,476,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,984,357.20 : 214,476,535.80 = 142,984,357.20 : x
  2. Step 2: Convert to fraction form
    142,984,357.20/214,476,535.80 = 142,984,357.20/x
  3. Step 3: Cross multiply
    142,984,357.20x = 214,476,535.80 × 142,984,357.20
  4. Step 4: Simplify right side
    142,984,357.20x = 30,666,789,605,845,788
  5. Step 5: Solve for x
    x = 30,666,789,605,845,788/142,984,357.20
  6. Step 6: Final answer
    x = 214,476,535.80

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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.