Home / 881,687,812.40-1,321,020,064.20-574,821,969.20

Finding the Fourth Proportional to 881,687,812.40, 1,321,020,064.20 and 574,821,969.20

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Solution

The fourth proportional to 881,687,812.40, 1,321,020,064.20 and 574,821,969.20 is: 861,247,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,687,812.40 : 1,321,020,064.20 = 574,821,969.20 : x
  2. Step 2: Convert to fraction form
    881,687,812.40/1,321,020,064.20 = 574,821,969.20/x
  3. Step 3: Cross multiply
    881,687,812.40x = 1,321,020,064.20 × 574,821,969.20
  4. Step 4: Simplify right side
    881,687,812.40x = 759,351,354,656,154,496
  5. Step 5: Solve for x
    x = 759,351,354,656,154,496/881,687,812.40
  6. Step 6: Final answer
    x = 861,247,421.11

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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.