Finding the Fourth Proportional to 869,049,209.36, 1,199,251,412.52 and 492,731,114.96
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Solution
The fourth proportional to 869,049,209.36, 1,199,251,412.52 and 492,731,114.96 is: 679,948,246.02
Step by Step Solution
- Step 1: Write the proportion equation
869,049,209.36 : 1,199,251,412.52 = 492,731,114.96 : x - Step 2: Convert to fraction form
869,049,209.36/1,199,251,412.52 = 492,731,114.96/x - Step 3: Cross multiply
869,049,209.36x = 1,199,251,412.52 × 492,731,114.96 - Step 4: Simplify right side
869,049,209.36x = 590,908,485,608,334,464 - Step 5: Solve for x
x = 590,908,485,608,334,464/869,049,209.36 - Step 6: Final answer
x = 679,948,246.02
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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.