Finding the Fourth Proportional to 97,117,908.40, 145,676,862.60 and 92,638,932.40
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Solution
The fourth proportional to 97,117,908.40, 145,676,862.60 and 92,638,932.40 is: 138,958,398.60
Step by Step Solution
- Step 1: Write the proportion equation
97,117,908.40 : 145,676,862.60 = 92,638,932.40 : x - Step 2: Convert to fraction form
97,117,908.40/145,676,862.60 = 92,638,932.40/x - Step 3: Cross multiply
97,117,908.40x = 145,676,862.60 × 92,638,932.40 - Step 4: Simplify right side
97,117,908.40x = 13,495,349,026,645,488 - Step 5: Solve for x
x = 13,495,349,026,645,488/97,117,908.40 - Step 6: Final answer
x = 138,958,398.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.