Finding the Fourth Proportional to 840,086,152.30, 1,159,319,100.28 and 463,742,958.70
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Solution
The fourth proportional to 840,086,152.30, 1,159,319,100.28 and 463,742,958.70 is: 639,965,398.99
Step by Step Solution
- Step 1: Write the proportion equation
840,086,152.30 : 1,159,319,100.28 = 463,742,958.70 : x - Step 2: Convert to fraction form
840,086,152.30/1,159,319,100.28 = 463,742,958.70/x - Step 3: Cross multiply
840,086,152.30x = 1,159,319,100.28 × 463,742,958.70 - Step 4: Simplify right side
840,086,152.30x = 537,626,069,641,269,184 - Step 5: Solve for x
x = 537,626,069,641,269,184/840,086,152.30 - Step 6: Final answer
x = 639,965,398.99
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1.5x scale
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.