Finding the Fourth Proportional to 340,778,115.19, 470,193,702.91 and 206,813,062.15
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Solution
The fourth proportional to 340,778,115.19, 470,193,702.91 and 206,813,062.15 is: 285,353,416.69
Step by Step Solution
- Step 1: Write the proportion equation
340,778,115.19 : 470,193,702.91 = 206,813,062.15 : x - Step 2: Convert to fraction form
340,778,115.19/470,193,702.91 = 206,813,062.15/x - Step 3: Cross multiply
340,778,115.19x = 470,193,702.91 × 206,813,062.15 - Step 4: Simplify right side
340,778,115.19x = 97,242,199,502,464,480 - Step 5: Solve for x
x = 97,242,199,502,464,480/340,778,115.19 - Step 6: Final answer
x = 285,353,416.69
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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.