Finding the Fourth Proportional to 821,346,872, 1,133,458,683.36 and 473,666,360
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Solution
The fourth proportional to 821,346,872, 1,133,458,683.36 and 473,666,360 is: 653,659,576.80
Step by Step Solution
- Step 1: Write the proportion equation
821,346,872 : 1,133,458,683.36 = 473,666,360 : x - Step 2: Convert to fraction form
821,346,872/1,133,458,683.36 = 473,666,360/x - Step 3: Cross multiply
821,346,872x = 1,133,458,683.36 × 473,666,360 - Step 4: Simplify right side
821,346,872x = 536,881,248,757,523,712 - Step 5: Solve for x
x = 536,881,248,757,523,712/821,346,872 - Step 6: Final answer
x = 653,659,576.80
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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.