Home / 879,771,207.90-1,320,507,117.45-443,564,435.10

Finding the Fourth Proportional to 879,771,207.90, 1,320,507,117.45 and 443,564,435.10

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Solution

The fourth proportional to 879,771,207.90, 1,320,507,117.45 and 443,564,435.10 is: 665,775,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,771,207.90 : 1,320,507,117.45 = 443,564,435.10 : x
  2. Step 2: Convert to fraction form
    879,771,207.90/1,320,507,117.45 = 443,564,435.10/x
  3. Step 3: Cross multiply
    879,771,207.90x = 1,320,507,117.45 × 443,564,435.10
  4. Step 4: Simplify right side
    879,771,207.90x = 585,729,993,597,238,656
  5. Step 5: Solve for x
    x = 585,729,993,597,238,656/879,771,207.90
  6. Step 6: Final answer
    x = 665,775,361.07

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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.