Home / 698,165,712.40-1,047,248,568.60-309,576,053.20

Finding the Fourth Proportional to 698,165,712.40, 1,047,248,568.60 and 309,576,053.20

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Solution

The fourth proportional to 698,165,712.40, 1,047,248,568.60 and 309,576,053.20 is: 464,364,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,165,712.40 : 1,047,248,568.60 = 309,576,053.20 : x
  2. Step 2: Convert to fraction form
    698,165,712.40/1,047,248,568.60 = 309,576,053.20/x
  3. Step 3: Cross multiply
    698,165,712.40x = 1,047,248,568.60 × 309,576,053.20
  4. Step 4: Simplify right side
    698,165,712.40x = 324,203,078,586,537,472
  5. Step 5: Solve for x
    x = 324,203,078,586,537,472/698,165,712.40
  6. Step 6: Final answer
    x = 464,364,079.80

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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.