Finding the Fourth Proportional to 77,656,326.12, 107,164,888.74 and 42,850,483.56
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Solution
The fourth proportional to 77,656,326.12, 107,164,888.74 and 42,850,483.56 is: 59,133,203.08
Step by Step Solution
- Step 1: Write the proportion equation
77,656,326.12 : 107,164,888.74 = 42,850,483.56 : x - Step 2: Convert to fraction form
77,656,326.12/107,164,888.74 = 42,850,483.56/x - Step 3: Cross multiply
77,656,326.12x = 107,164,888.74 × 42,850,483.56 - Step 4: Simplify right side
77,656,326.12x = 4,592,067,303,162,599 - Step 5: Solve for x
x = 4,592,067,303,162,599/77,656,326.12 - Step 6: Final answer
x = 59,133,203.08
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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.