Home / 774,336,916.02-1,068,585,097.38-421,912,906.98

Finding the Fourth Proportional to 774,336,916.02, 1,068,585,097.38 and 421,912,906.98

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Solution

The fourth proportional to 774,336,916.02, 1,068,585,097.38 and 421,912,906.98 is: 582,239,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,336,916.02 : 1,068,585,097.38 = 421,912,906.98 : x
  2. Step 2: Convert to fraction form
    774,336,916.02/1,068,585,097.38 = 421,912,906.98/x
  3. Step 3: Cross multiply
    774,336,916.02x = 1,068,585,097.38 × 421,912,906.98
  4. Step 4: Simplify right side
    774,336,916.02x = 450,849,844,791,102,208
  5. Step 5: Solve for x
    x = 450,849,844,791,102,208/774,336,916.02
  6. Step 6: Final answer
    x = 582,239,895.15

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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.