Finding the Fourth Proportional to 77,971,109.48, 107,566,354.99 and 47,014,080.74
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Solution
The fourth proportional to 77,971,109.48, 107,566,354.99 and 47,014,080.74 is: 64,859,065.52
Step by Step Solution
- Step 1: Write the proportion equation
77,971,109.48 : 107,566,354.99 = 47,014,080.74 : x - Step 2: Convert to fraction form
77,971,109.48/107,566,354.99 = 47,014,080.74/x - Step 3: Cross multiply
77,971,109.48x = 107,566,354.99 × 47,014,080.74 - Step 4: Simplify right side
77,971,109.48x = 5,057,133,298,407,362 - Step 5: Solve for x
x = 5,057,133,298,407,362/77,971,109.48 - Step 6: Final answer
x = 64,859,065.52
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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.