Finding the Fourth Proportional to 71,130,892.68, 98,160,731.88 and 38,535,844.68
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Solution
The fourth proportional to 71,130,892.68, 98,160,731.88 and 38,535,844.68 is: 53,179,519.82
Step by Step Solution
- Step 1: Write the proportion equation
71,130,892.68 : 98,160,731.88 = 38,535,844.68 : x - Step 2: Convert to fraction form
71,130,892.68/98,160,731.88 = 38,535,844.68/x - Step 3: Cross multiply
71,130,892.68x = 98,160,731.88 × 38,535,844.68 - Step 4: Simplify right side
71,130,892.68x = 3,782,706,717,402,804 - Step 5: Solve for x
x = 3,782,706,717,402,804/71,130,892.68 - Step 6: Final answer
x = 53,179,519.82
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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.