Finding the Fourth Proportional to 479,646,378.08, 719,538,198.68 and 147,681,475.84
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Solution
The fourth proportional to 479,646,378.08, 719,538,198.68 and 147,681,475.84 is: 221,543,345.18
Step by Step Solution
- Step 1: Write the proportion equation
479,646,378.08 : 719,538,198.68 = 147,681,475.84 : x - Step 2: Convert to fraction form
479,646,378.08/719,538,198.68 = 147,681,475.84/x - Step 3: Cross multiply
479,646,378.08x = 719,538,198.68 × 147,681,475.84 - Step 4: Simplify right side
479,646,378.08x = 106,262,463,104,317,536 - Step 5: Solve for x
x = 106,262,463,104,317,536/479,646,378.08 - Step 6: Final answer
x = 221,543,345.18
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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.