Finding the Fourth Proportional to 98,681,188.70, 136,181,652.63 and 54,026,415.74
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Solution
The fourth proportional to 98,681,188.70, 136,181,652.63 and 54,026,415.74 is: 74,557,336.39
Step by Step Solution
- Step 1: Write the proportion equation
98,681,188.70 : 136,181,652.63 = 54,026,415.74 : x - Step 2: Convert to fraction form
98,681,188.70/136,181,652.63 = 54,026,415.74/x - Step 3: Cross multiply
98,681,188.70x = 136,181,652.63 × 54,026,415.74 - Step 4: Simplify right side
98,681,188.70x = 7,357,406,581,148,644 - Step 5: Solve for x
x = 7,357,406,581,148,644/98,681,188.70 - Step 6: Final answer
x = 74,557,336.39
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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.