Finding the Fourth Proportional to 268,691,349.96, 370,908,471.33 and 180,636,421.68
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Solution
The fourth proportional to 268,691,349.96, 370,908,471.33 and 180,636,421.68 is: 249,355,176.64
Step by Step Solution
- Step 1: Write the proportion equation
268,691,349.96 : 370,908,471.33 = 180,636,421.68 : x - Step 2: Convert to fraction form
268,691,349.96/370,908,471.33 = 180,636,421.68/x - Step 3: Cross multiply
268,691,349.96x = 370,908,471.33 × 180,636,421.68 - Step 4: Simplify right side
268,691,349.96x = 66,999,579,031,850,072 - Step 5: Solve for x
x = 66,999,579,031,850,072/268,691,349.96 - Step 6: Final answer
x = 249,355,176.64
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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.