Finding the Fourth Proportional to 397,943,252.57, 549,163,867.16 and 230,778,626.15
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Solution
The fourth proportional to 397,943,252.57, 549,163,867.16 and 230,778,626.15 is: 318,475,767.53
Step by Step Solution
- Step 1: Write the proportion equation
397,943,252.57 : 549,163,867.16 = 230,778,626.15 : x - Step 2: Convert to fraction form
397,943,252.57/549,163,867.16 = 230,778,626.15/x - Step 3: Cross multiply
397,943,252.57x = 549,163,867.16 × 230,778,626.15 - Step 4: Simplify right side
397,943,252.57x = 126,735,282,794,405,904 - Step 5: Solve for x
x = 126,735,282,794,405,904/397,943,252.57 - Step 6: Final answer
x = 318,475,767.53
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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.