Home / 1,390,805,371.20-2,086,208,056.80-901,029,345.60

Finding the Fourth Proportional to 1,390,805,371.20, 2,086,208,056.80 and 901,029,345.60

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Solution

The fourth proportional to 1,390,805,371.20, 2,086,208,056.80 and 901,029,345.60 is: 1,351,544,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,805,371.20 : 2,086,208,056.80 = 901,029,345.60 : x
  2. Step 2: Convert to fraction form
    1,390,805,371.20/2,086,208,056.80 = 901,029,345.60/x
  3. Step 3: Cross multiply
    1,390,805,371.20x = 2,086,208,056.80 × 901,029,345.60
  4. Step 4: Simplify right side
    1,390,805,371.20x = 1,879,734,680,203,951,616
  5. Step 5: Solve for x
    x = 1,879,734,680,203,951,616/1,390,805,371.20
  6. Step 6: Final answer
    x = 1,351,544,018.40

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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.