Home / 779,177,095.43-1,075,264,974.33-421,945,263.71

Finding the Fourth Proportional to 779,177,095.43, 1,075,264,974.33 and 421,945,263.71

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Solution

The fourth proportional to 779,177,095.43, 1,075,264,974.33 and 421,945,263.71 is: 582,284,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,177,095.43 : 1,075,264,974.33 = 421,945,263.71 : x
  2. Step 2: Convert to fraction form
    779,177,095.43/1,075,264,974.33 = 421,945,263.71/x
  3. Step 3: Cross multiply
    779,177,095.43x = 1,075,264,974.33 × 421,945,263.71
  4. Step 4: Simplify right side
    779,177,095.43x = 453,702,963,151,798,144
  5. Step 5: Solve for x
    x = 453,702,963,151,798,144/779,177,095.43
  6. Step 6: Final answer
    x = 582,284,779.43

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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.