Finding the Fourth Proportional to 15,778,121,006.84, 21,774,491,432.96 and 8,737,590,638.84
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Solution
The fourth proportional to 15,778,121,006.84, 21,774,491,432.96 and 8,737,590,638.84 is: 12,058,254,111.99
Step by Step Solution
- Step 1: Write the proportion equation
15,778,121,006.84 : 21,774,491,432.96 = 8,737,590,638.84 : x - Step 2: Convert to fraction form
15,778,121,006.84/21,774,491,432.96 = 8,737,590,638.84/x - Step 3: Cross multiply
15,778,121,006.84x = 21,774,491,432.96 × 8,737,590,638.84 - Step 4: Simplify right side
15,778,121,006.84x = 190,256,592,510,133,075,968 - Step 5: Solve for x
x = 190,256,592,510,133,075,968/15,778,121,006.84 - Step 6: Final answer
x = 12,058,254,111.99
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1.5x scale
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.