Finding the Fourth Proportional to 1,237,134,219,493.70, 1,707,393,847,048.20 and 749,378,845,801.48
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Solution
The fourth proportional to 1,237,134,219,493.70, 1,707,393,847,048.20 and 749,378,845,801.48 is: 1,034,232,834,456.04
Step by Step Solution
- Step 1: Write the proportion equation
1,237,134,219,493.70 : 1,707,393,847,048.20 = 749,378,845,801.48 : x - Step 2: Convert to fraction form
1,237,134,219,493.70/1,707,393,847,048.20 = 749,378,845,801.48/x - Step 3: Cross multiply
1,237,134,219,493.70x = 1,707,393,847,048.20 × 749,378,845,801.48 - Step 4: Simplify right side
1,237,134,219,493.70x = 1,279,484,830,429,528,840,994,816 - Step 5: Solve for x
x = 1,279,484,830,429,528,840,994,816/1,237,134,219,493.70 - Step 6: Final answer
x = 1,034,232,834,456.04
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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.