Finding the Fourth Proportional to 98,742,455.05, 136,212,926.19 and 61,053,571.26
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Solution
The fourth proportional to 98,742,455.05, 136,212,926.19 and 61,053,571.26 is: 84,221,985.28
Step by Step Solution
- Step 1: Write the proportion equation
98,742,455.05 : 136,212,926.19 = 61,053,571.26 : x - Step 2: Convert to fraction form
98,742,455.05/136,212,926.19 = 61,053,571.26/x - Step 3: Cross multiply
98,742,455.05x = 136,212,926.19 × 61,053,571.26 - Step 4: Simplify right side
98,742,455.05x = 8,316,285,595,903,896 - Step 5: Solve for x
x = 8,316,285,595,903,896/98,742,455.05 - Step 6: Final answer
x = 84,221,985.28
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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.