Finding the Fourth Proportional to 920,277,746.48, 1,380,444,964.20 and 402,441,636.08
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Solution
The fourth proportional to 920,277,746.48, 1,380,444,964.20 and 402,441,636.08 is: 603,674,849.29
Step by Step Solution
- Step 1: Write the proportion equation
920,277,746.48 : 1,380,444,964.20 = 402,441,636.08 : x - Step 2: Convert to fraction form
920,277,746.48/1,380,444,964.20 = 402,441,636.08/x - Step 3: Cross multiply
920,277,746.48x = 1,380,444,964.20 × 402,441,636.08 - Step 4: Simplify right side
920,277,746.48x = 555,548,529,911,045,056 - Step 5: Solve for x
x = 555,548,529,911,045,056/920,277,746.48 - Step 6: Final answer
x = 603,674,849.29
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1.5x scale
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.