Finding the Fourth Proportional to 311,750,405.19, 430,216,699.55 and 168,696,170.06
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Solution
The fourth proportional to 311,750,405.19, 430,216,699.55 and 168,696,170.06 is: 232,801,331.77
Step by Step Solution
- Step 1: Write the proportion equation
311,750,405.19 : 430,216,699.55 = 168,696,170.06 : x - Step 2: Convert to fraction form
311,750,405.19/430,216,699.55 = 168,696,170.06/x - Step 3: Cross multiply
311,750,405.19x = 430,216,699.55 × 168,696,170.06 - Step 4: Simplify right side
311,750,405.19x = 72,575,909,506,944,160 - Step 5: Solve for x
x = 72,575,909,506,944,160/311,750,405.19 - Step 6: Final answer
x = 232,801,331.77
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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.