Home / 698,143,409.40-1,047,215,114.10-309,553,750.20

Finding the Fourth Proportional to 698,143,409.40, 1,047,215,114.10 and 309,553,750.20

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Solution

The fourth proportional to 698,143,409.40, 1,047,215,114.10 and 309,553,750.20 is: 464,330,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,143,409.40 : 1,047,215,114.10 = 309,553,750.20 : x
  2. Step 2: Convert to fraction form
    698,143,409.40/1,047,215,114.10 = 309,553,750.20/x
  3. Step 3: Cross multiply
    698,143,409.40x = 1,047,215,114.10 × 309,553,750.20
  4. Step 4: Simplify right side
    698,143,409.40x = 324,169,365,835,775,872
  5. Step 5: Solve for x
    x = 324,169,365,835,775,872/698,143,409.40
  6. Step 6: Final answer
    x = 464,330,625.30

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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.