Finding the Fourth Proportional to 98,413,637.20, 147,620,455.80 and 47,283,326.80
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Solution
The fourth proportional to 98,413,637.20, 147,620,455.80 and 47,283,326.80 is: 70,924,990.20
Step by Step Solution
- Step 1: Write the proportion equation
98,413,637.20 : 147,620,455.80 = 47,283,326.80 : x - Step 2: Convert to fraction form
98,413,637.20/147,620,455.80 = 47,283,326.80/x - Step 3: Cross multiply
98,413,637.20x = 147,620,455.80 × 47,283,326.80 - Step 4: Simplify right side
98,413,637.20x = 6,979,986,253,956,356 - Step 5: Solve for x
x = 6,979,986,253,956,356/98,413,637.20 - Step 6: Final answer
x = 70,924,990.20
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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.