Finding the Fourth Proportional to 315,545,805.36, 435,470,032.44 and 176,319,946.80
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Solution
The fourth proportional to 315,545,805.36, 435,470,032.44 and 176,319,946.80 is: 243,330,925.81
Step by Step Solution
- Step 1: Write the proportion equation
315,545,805.36 : 435,470,032.44 = 176,319,946.80 : x - Step 2: Convert to fraction form
315,545,805.36/435,470,032.44 = 176,319,946.80/x - Step 3: Cross multiply
315,545,805.36x = 435,470,032.44 × 176,319,946.80 - Step 4: Simplify right side
315,545,805.36x = 76,782,052,952,815,072 - Step 5: Solve for x
x = 76,782,052,952,815,072/315,545,805.36 - Step 6: Final answer
x = 243,330,925.81
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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.