Finding the Fourth Proportional to 143,948,774,769.42, 198,553,657,474.30 and 92,572,287,775.31
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Solution
The fourth proportional to 143,948,774,769.42, 198,553,657,474.30 and 92,572,287,775.31 is: 127,688,244,293.81
Step by Step Solution
- Step 1: Write the proportion equation
143,948,774,769.42 : 198,553,657,474.30 = 92,572,287,775.31 : x - Step 2: Convert to fraction form
143,948,774,769.42/198,553,657,474.30 = 92,572,287,775.31/x - Step 3: Cross multiply
143,948,774,769.42x = 198,553,657,474.30 × 92,572,287,775.31 - Step 4: Simplify right side
143,948,774,769.42x = 18,380,566,318,551,626,940,416 - Step 5: Solve for x
x = 18,380,566,318,551,626,940,416/143,948,774,769.42 - Step 6: Final answer
x = 127,688,244,293.81
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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.