Home / 874,326,494.80-1,311,495,379.32-349,739,421.56

Finding the Fourth Proportional to 874,326,494.80, 1,311,495,379.32 and 349,739,421.56

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Solution

The fourth proportional to 874,326,494.80, 1,311,495,379.32 and 349,739,421.56 is: 524,611,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,326,494.80 : 1,311,495,379.32 = 349,739,421.56 : x
  2. Step 2: Convert to fraction form
    874,326,494.80/1,311,495,379.32 = 349,739,421.56/x
  3. Step 3: Cross multiply
    874,326,494.80x = 1,311,495,379.32 × 349,739,421.56
  4. Step 4: Simplify right side
    874,326,494.80x = 458,681,635,341,989,568
  5. Step 5: Solve for x
    x = 458,681,635,341,989,568/874,326,494.80
  6. Step 6: Final answer
    x = 524,611,387.24

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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.