Finding the Fourth Proportional to 875,179,927.14, 1,207,734,106.05 and 478,699,448.42
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Solution
The fourth proportional to 875,179,927.14, 1,207,734,106.05 and 478,699,448.42 is: 660,597,475.41
Step by Step Solution
- Step 1: Write the proportion equation
875,179,927.14 : 1,207,734,106.05 = 478,699,448.42 : x - Step 2: Convert to fraction form
875,179,927.14/1,207,734,106.05 = 478,699,448.42/x - Step 3: Cross multiply
875,179,927.14x = 1,207,734,106.05 × 478,699,448.42 - Step 4: Simplify right side
875,179,927.14x = 578,141,650,398,118,144 - Step 5: Solve for x
x = 578,141,650,398,118,144/875,179,927.14 - Step 6: Final answer
x = 660,597,475.41
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1.5x scale
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.