Finding the Fourth Proportional to 153,001,410.84, 211,135,800.42 and 83,385,299.88
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Solution
The fourth proportional to 153,001,410.84, 211,135,800.42 and 83,385,299.88 is: 115,068,363.99
Step by Step Solution
- Step 1: Write the proportion equation
153,001,410.84 : 211,135,800.42 = 83,385,299.88 : x - Step 2: Convert to fraction form
153,001,410.84/211,135,800.42 = 83,385,299.88/x - Step 3: Cross multiply
153,001,410.84x = 211,135,800.42 × 83,385,299.88 - Step 4: Simplify right side
153,001,410.84x = 17,605,622,033,425,528 - Step 5: Solve for x
x = 17,605,622,033,425,528/153,001,410.84 - Step 6: Final answer
x = 115,068,363.99
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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.