Home / 699,407,854.02-965,267,476.56-398,066,436.36

Finding the Fourth Proportional to 699,407,854.02, 965,267,476.56 and 398,066,436.36

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Solution

The fourth proportional to 699,407,854.02, 965,267,476.56 and 398,066,436.36 is: 549,379,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,407,854.02 : 965,267,476.56 = 398,066,436.36 : x
  2. Step 2: Convert to fraction form
    699,407,854.02/965,267,476.56 = 398,066,436.36/x
  3. Step 3: Cross multiply
    699,407,854.02x = 965,267,476.56 × 398,066,436.36
  4. Step 4: Simplify right side
    699,407,854.02x = 384,240,584,528,449,024
  5. Step 5: Solve for x
    x = 384,240,584,528,449,024/699,407,854.02
  6. Step 6: Final answer
    x = 549,379,853.71

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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.