Finding the Fourth Proportional to 239,998,012.36, 331,224,135.43 and 135,582,809.74
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Solution
The fourth proportional to 239,998,012.36, 331,224,135.43 and 135,582,809.74 is: 187,119,461.91
Step by Step Solution
- Step 1: Write the proportion equation
239,998,012.36 : 331,224,135.43 = 135,582,809.74 : x - Step 2: Convert to fraction form
239,998,012.36/331,224,135.43 = 135,582,809.74/x - Step 3: Cross multiply
239,998,012.36x = 331,224,135.43 × 135,582,809.74 - Step 4: Simplify right side
239,998,012.36x = 44,908,298,933,445,280 - Step 5: Solve for x
x = 44,908,298,933,445,280/239,998,012.36 - Step 6: Final answer
x = 187,119,461.91
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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.