Finding the Fourth Proportional to 77,069,558.40, 106,253,101.98 and 61,227,207.42
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Solution
The fourth proportional to 77,069,558.40, 106,253,101.98 and 61,227,207.42 is: 84,411,807.32
Step by Step Solution
- Step 1: Write the proportion equation
77,069,558.40 : 106,253,101.98 = 61,227,207.42 : x - Step 2: Convert to fraction form
77,069,558.40/106,253,101.98 = 61,227,207.42/x - Step 3: Cross multiply
77,069,558.40x = 106,253,101.98 × 61,227,207.42 - Step 4: Simplify right side
77,069,558.40x = 6,505,580,713,947,873 - Step 5: Solve for x
x = 6,505,580,713,947,873/77,069,558.40 - Step 6: Final answer
x = 84,411,807.32
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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.