Home / 1,211,982,921.20-1,672,569,277.08-742,075,301.36

Finding the Fourth Proportional to 1,211,982,921.20, 1,672,569,277.08 and 742,075,301.36

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Solution

The fourth proportional to 1,211,982,921.20, 1,672,569,277.08 and 742,075,301.36 is: 1,024,084,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,982,921.20 : 1,672,569,277.08 = 742,075,301.36 : x
  2. Step 2: Convert to fraction form
    1,211,982,921.20/1,672,569,277.08 = 742,075,301.36/x
  3. Step 3: Cross multiply
    1,211,982,921.20x = 1,672,569,277.08 × 742,075,301.36
  4. Step 4: Simplify right side
    1,211,982,921.20x = 1,241,172,350,334,618,368
  5. Step 5: Solve for x
    x = 1,241,172,350,334,618,368/1,211,982,921.20
  6. Step 6: Final answer
    x = 1,024,084,026.78

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.