Finding the Fourth Proportional to 900,381,440.13, 1,242,656,881.83 and 518,829,243.80
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Solution
The fourth proportional to 900,381,440.13, 1,242,656,881.83 and 518,829,243.80 is: 716,059,551.61
Step by Step Solution
- Step 1: Write the proportion equation
900,381,440.13 : 1,242,656,881.83 = 518,829,243.80 : x - Step 2: Convert to fraction form
900,381,440.13/1,242,656,881.83 = 518,829,243.80/x - Step 3: Cross multiply
900,381,440.13x = 1,242,656,881.83 × 518,829,243.80 - Step 4: Simplify right side
900,381,440.13x = 644,726,730,296,511,616 - Step 5: Solve for x
x = 644,726,730,296,511,616/900,381,440.13 - Step 6: Final answer
x = 716,059,551.61
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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.