Finding the Fourth Proportional to 315,615,354.59, 435,562,640.48 and 176,386,112.26
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Solution
The fourth proportional to 315,615,354.59, 435,562,640.48 and 176,386,112.26 is: 243,420,352.28
Step by Step Solution
- Step 1: Write the proportion equation
315,615,354.59 : 435,562,640.48 = 176,386,112.26 : x - Step 2: Convert to fraction form
315,615,354.59/435,562,640.48 = 176,386,112.26/x - Step 3: Cross multiply
315,615,354.59x = 435,562,640.48 × 176,386,112.26 - Step 4: Simplify right side
315,615,354.59x = 76,827,200,799,319,360 - Step 5: Solve for x
x = 76,827,200,799,319,360/315,615,354.59 - Step 6: Final answer
x = 243,420,352.28
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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.