Finding the Fourth Proportional to 21,371,909,533.05, 29,859,520,393.95 and 21,371,909,533.05
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Solution
The fourth proportional to 21,371,909,533.05, 29,859,520,393.95 and 21,371,909,533.05 is: 29,859,520,393.95
Step by Step Solution
- Step 1: Write the proportion equation
21,371,909,533.05 : 29,859,520,393.95 = 21,371,909,533.05 : x - Step 2: Convert to fraction form
21,371,909,533.05/29,859,520,393.95 = 21,371,909,533.05/x - Step 3: Cross multiply
21,371,909,533.05x = 29,859,520,393.95 × 21,371,909,533.05 - Step 4: Simplify right side
21,371,909,533.05x = 638,154,968,559,760,834,560 - Step 5: Solve for x
x = 638,154,968,559,760,834,560/21,371,909,533.05 - Step 6: Final answer
x = 29,859,520,393.95
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.