Finding the Fourth Proportional to 845,194,278.84, 1,166,193,444.76 and 487,955,865.08
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Solution
The fourth proportional to 845,194,278.84, 1,166,193,444.76 and 487,955,865.08 is: 673,278,257.36
Step by Step Solution
- Step 1: Write the proportion equation
845,194,278.84 : 1,166,193,444.76 = 487,955,865.08 : x - Step 2: Convert to fraction form
845,194,278.84/1,166,193,444.76 = 487,955,865.08/x - Step 3: Cross multiply
845,194,278.84x = 1,166,193,444.76 × 487,955,865.08 - Step 4: Simplify right side
845,194,278.84x = 569,050,931,188,490,944 - Step 5: Solve for x
x = 569,050,931,188,490,944/845,194,278.84 - Step 6: Final answer
x = 673,278,257.36
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Double scale
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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.