Finding the Fourth Proportional to 85,689,881.64, 118,251,608.40 and 46,531,309.68
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Solution
The fourth proportional to 85,689,881.64, 118,251,608.40 and 46,531,309.68 is: 64,212,974.80
Step by Step Solution
- Step 1: Write the proportion equation
85,689,881.64 : 118,251,608.40 = 46,531,309.68 : x - Step 2: Convert to fraction form
85,689,881.64/118,251,608.40 = 46,531,309.68/x - Step 3: Cross multiply
85,689,881.64x = 118,251,608.40 × 46,531,309.68 - Step 4: Simplify right side
85,689,881.64x = 5,502,402,210,618,490 - Step 5: Solve for x
x = 5,502,402,210,618,490/85,689,881.64 - Step 6: Final answer
x = 64,212,974.80
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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.