Finding the Fourth Proportional to 315,615,363.62, 435,562,652.97 and 176,386,121.28
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Solution
The fourth proportional to 315,615,363.62, 435,562,652.97 and 176,386,121.28 is: 243,420,364.75
Step by Step Solution
- Step 1: Write the proportion equation
315,615,363.62 : 435,562,652.97 = 176,386,121.28 : x - Step 2: Convert to fraction form
315,615,363.62/435,562,652.97 = 176,386,121.28/x - Step 3: Cross multiply
315,615,363.62x = 435,562,652.97 × 176,386,121.28 - Step 4: Simplify right side
315,615,363.62x = 76,827,206,931,804,976 - Step 5: Solve for x
x = 76,827,206,931,804,976/315,615,363.62 - Step 6: Final answer
x = 243,420,364.75
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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.