Home / 819,641,270.81-1,131,113,928-448,363,305.83

Finding the Fourth Proportional to 819,641,270.81, 1,131,113,928 and 448,363,305.83

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Solution

The fourth proportional to 819,641,270.81, 1,131,113,928 and 448,363,305.83 is: 618,746,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,641,270.81 : 1,131,113,928 = 448,363,305.83 : x
  2. Step 2: Convert to fraction form
    819,641,270.81/1,131,113,928 = 448,363,305.83/x
  3. Step 3: Cross multiply
    819,641,270.81x = 1,131,113,928 × 448,363,305.83
  4. Step 4: Simplify right side
    819,641,270.81x = 507,149,980,022,780,992
  5. Step 5: Solve for x
    x = 507,149,980,022,780,992/819,641,270.81
  6. Step 6: Final answer
    x = 618,746,271.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.