Finding the Fourth Proportional to 168,490,838.10, 252,736,257.15 and 157,153,430.10
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Solution
The fourth proportional to 168,490,838.10, 252,736,257.15 and 157,153,430.10 is: 235,730,145.15
Step by Step Solution
- Step 1: Write the proportion equation
168,490,838.10 : 252,736,257.15 = 157,153,430.10 : x - Step 2: Convert to fraction form
168,490,838.10/252,736,257.15 = 157,153,430.10/x - Step 3: Cross multiply
168,490,838.10x = 252,736,257.15 × 157,153,430.10 - Step 4: Simplify right side
168,490,838.10x = 39,718,369,721,758,152 - Step 5: Solve for x
x = 39,718,369,721,758,152/168,490,838.10 - Step 6: Final answer
x = 235,730,145.15
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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.