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Finding the Fourth Proportional to 1,292,760,419.40, 1,814,456,237.40 and 1,292,760,419.40

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Solution

The fourth proportional to 1,292,760,419.40, 1,814,456,237.40 and 1,292,760,419.40 is: 1,814,456,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,760,419.40 : 1,814,456,237.40 = 1,292,760,419.40 : x
  2. Step 2: Convert to fraction form
    1,292,760,419.40/1,814,456,237.40 = 1,292,760,419.40/x
  3. Step 3: Cross multiply
    1,292,760,419.40x = 1,814,456,237.40 × 1,292,760,419.40
  4. Step 4: Simplify right side
    1,292,760,419.40x = 2,345,657,206,444,170,240
  5. Step 5: Solve for x
    x = 2,345,657,206,444,170,240/1,292,760,419.40
  6. Step 6: Final answer
    x = 1,814,456,237.40

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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.