Finding the Fourth Proportional to 883,398,392.16, 1,219,034,319.12 and 486,899,562.48
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Solution
The fourth proportional to 883,398,392.16, 1,219,034,319.12 and 486,899,562.48 is: 671,890,827.39
Step by Step Solution
- Step 1: Write the proportion equation
883,398,392.16 : 1,219,034,319.12 = 486,899,562.48 : x - Step 2: Convert to fraction form
883,398,392.16/1,219,034,319.12 = 486,899,562.48/x - Step 3: Cross multiply
883,398,392.16x = 1,219,034,319.12 × 486,899,562.48 - Step 4: Simplify right side
883,398,392.16x = 593,547,276,627,632,640 - Step 5: Solve for x
x = 593,547,276,627,632,640/883,398,392.16 - Step 6: Final answer
x = 671,890,827.39
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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.