Finding the Fourth Proportional to 70,309,853.46, 97,026,299.58 and 38,947,214.29
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Solution
The fourth proportional to 70,309,853.46, 97,026,299.58 and 38,947,214.29 is: 53,746,436.61
Step by Step Solution
- Step 1: Write the proportion equation
70,309,853.46 : 97,026,299.58 = 38,947,214.29 : x - Step 2: Convert to fraction form
70,309,853.46/97,026,299.58 = 38,947,214.29/x - Step 3: Cross multiply
70,309,853.46x = 97,026,299.58 × 38,947,214.29 - Step 4: Simplify right side
70,309,853.46x = 3,778,904,081,507,997 - Step 5: Solve for x
x = 3,778,904,081,507,997/70,309,853.46 - Step 6: Final answer
x = 53,746,436.61
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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.