Finding the Fourth Proportional to 885,014,706.68, 1,221,305,587.42 and 488,527,440.56
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Solution
The fourth proportional to 885,014,706.68, 1,221,305,587.42 and 488,527,440.56 is: 674,159,749.28
Step by Step Solution
- Step 1: Write the proportion equation
885,014,706.68 : 1,221,305,587.42 = 488,527,440.56 : x - Step 2: Convert to fraction form
885,014,706.68/1,221,305,587.42 = 488,527,440.56/x - Step 3: Cross multiply
885,014,706.68x = 1,221,305,587.42 × 488,527,440.56 - Step 4: Simplify right side
885,014,706.68x = 596,641,292,763,920,000 - Step 5: Solve for x
x = 596,641,292,763,920,000/885,014,706.68 - Step 6: Final answer
x = 674,159,749.28
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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.