Finding the Fourth Proportional to 1,921,425,975.48, 2,882,532,058.90 and 660,726,358.94
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Solution
The fourth proportional to 1,921,425,975.48, 2,882,532,058.90 and 660,726,358.94 is: 991,224,713.37
Step by Step Solution
- Step 1: Write the proportion equation
1,921,425,975.48 : 2,882,532,058.90 = 660,726,358.94 : x - Step 2: Convert to fraction form
1,921,425,975.48/2,882,532,058.90 = 660,726,358.94/x - Step 3: Cross multiply
1,921,425,975.48x = 2,882,532,058.90 × 660,726,358.94 - Step 4: Simplify right side
1,921,425,975.48x = 1,904,564,911,804,818,944 - Step 5: Solve for x
x = 1,904,564,911,804,818,944/1,921,425,975.48 - Step 6: Final answer
x = 991,224,713.37
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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.