Home / 1,321,127,577.48-1,982,464,114.65-492,653,573.76

Finding the Fourth Proportional to 1,321,127,577.48, 1,982,464,114.65 and 492,653,573.76

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Solution

The fourth proportional to 1,321,127,577.48, 1,982,464,114.65 and 492,653,573.76 is: 739,268,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127,577.48 : 1,982,464,114.65 = 492,653,573.76 : x
  2. Step 2: Convert to fraction form
    1,321,127,577.48/1,982,464,114.65 = 492,653,573.76/x
  3. Step 3: Cross multiply
    1,321,127,577.48x = 1,982,464,114.65 × 492,653,573.76
  4. Step 4: Simplify right side
    1,321,127,577.48x = 976,668,030,938,888,320
  5. Step 5: Solve for x
    x = 976,668,030,938,888,320/1,321,127,577.48
  6. Step 6: Final answer
    x = 739,268,521.51

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Double scale
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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.