Finding the Fourth Proportional to 521,724,355.08, 719,969,924.16 and 286,769,992.74
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Solution
The fourth proportional to 521,724,355.08, 719,969,924.16 and 286,769,992.74 is: 395,737,266.08
Step by Step Solution
- Step 1: Write the proportion equation
521,724,355.08 : 719,969,924.16 = 286,769,992.74 : x - Step 2: Convert to fraction form
521,724,355.08/719,969,924.16 = 286,769,992.74/x - Step 3: Cross multiply
521,724,355.08x = 719,969,924.16 × 286,769,992.74 - Step 4: Simplify right side
521,724,355.08x = 206,465,769,924,381,536 - Step 5: Solve for x
x = 206,465,769,924,381,536/521,724,355.08 - Step 6: Final answer
x = 395,737,266.08
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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.