Finding the Fourth Proportional to 83,626,484.63, 115,358,058.39 and 77,708,095.62
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Solution
The fourth proportional to 83,626,484.63, 115,358,058.39 and 77,708,095.62 is: 107,193,971.77
Step by Step Solution
- Step 1: Write the proportion equation
83,626,484.63 : 115,358,058.39 = 77,708,095.62 : x - Step 2: Convert to fraction form
83,626,484.63/115,358,058.39 = 77,708,095.62/x - Step 3: Cross multiply
83,626,484.63x = 115,358,058.39 × 77,708,095.62 - Step 4: Simplify right side
83,626,484.63x = 8,964,255,031,907,664 - Step 5: Solve for x
x = 8,964,255,031,907,664/83,626,484.63 - Step 6: Final answer
x = 107,193,971.77
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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.