Home / 779,177,096.93-1,075,264,976.40-421,945,265.21

Finding the Fourth Proportional to 779,177,096.93, 1,075,264,976.40 and 421,945,265.21

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Solution

The fourth proportional to 779,177,096.93, 1,075,264,976.40 and 421,945,265.21 is: 582,284,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,177,096.93 : 1,075,264,976.40 = 421,945,265.21 : x
  2. Step 2: Convert to fraction form
    779,177,096.93/1,075,264,976.40 = 421,945,265.21/x
  3. Step 3: Cross multiply
    779,177,096.93x = 1,075,264,976.40 × 421,945,265.21
  4. Step 4: Simplify right side
    779,177,096.93x = 453,702,965,638,122,432
  5. Step 5: Solve for x
    x = 453,702,965,638,122,432/779,177,096.93
  6. Step 6: Final answer
    x = 582,284,781.50

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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.