Finding the Fourth Proportional to 805,202,208.90, 1,207,803,313.35 and 417,781,719.90
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Solution
The fourth proportional to 805,202,208.90, 1,207,803,313.35 and 417,781,719.90 is: 626,672,579.85
Step by Step Solution
- Step 1: Write the proportion equation
805,202,208.90 : 1,207,803,313.35 = 417,781,719.90 : x - Step 2: Convert to fraction form
805,202,208.90/1,207,803,313.35 = 417,781,719.90/x - Step 3: Cross multiply
805,202,208.90x = 1,207,803,313.35 × 417,781,719.90 - Step 4: Simplify right side
805,202,208.90x = 504,598,145,552,281,536 - Step 5: Solve for x
x = 504,598,145,552,281,536/805,202,208.90 - Step 6: Final answer
x = 626,672,579.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.