Finding the Fourth Proportional to 657,767,965.12, 986,776,386.56 and 264,325,418.88
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Solution
The fourth proportional to 657,767,965.12, 986,776,386.56 and 264,325,418.88 is: 396,538,134.34
Step by Step Solution
- Step 1: Write the proportion equation
657,767,965.12 : 986,776,386.56 = 264,325,418.88 : x - Step 2: Convert to fraction form
657,767,965.12/986,776,386.56 = 264,325,418.88/x - Step 3: Cross multiply
657,767,965.12x = 986,776,386.56 × 264,325,418.88 - Step 4: Simplify right side
657,767,965.12x = 260,830,081,718,364,768 - Step 5: Solve for x
x = 260,830,081,718,364,768/657,767,965.12 - Step 6: Final answer
x = 396,538,134.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.