Home / 1,005,045,912-1,507,569,418.80-459,404,808.48

Finding the Fourth Proportional to 1,005,045,912, 1,507,569,418.80 and 459,404,808.48

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Solution

The fourth proportional to 1,005,045,912, 1,507,569,418.80 and 459,404,808.48 is: 689,107,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,045,912 : 1,507,569,418.80 = 459,404,808.48 : x
  2. Step 2: Convert to fraction form
    1,005,045,912/1,507,569,418.80 = 459,404,808.48/x
  3. Step 3: Cross multiply
    1,005,045,912x = 1,507,569,418.80 × 459,404,808.48
  4. Step 4: Simplify right side
    1,005,045,912x = 692,584,640,114,118,912
  5. Step 5: Solve for x
    x = 692,584,640,114,118,912/1,005,045,912
  6. Step 6: Final answer
    x = 689,107,464.49

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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.