Finding the Fourth Proportional to 1,438,937,671,190.80, 2,158,423,087,692.90 and 520,076,794,799.70
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Solution
The fourth proportional to 1,438,937,671,190.80, 2,158,423,087,692.90 and 520,076,794,799.70 is: 780,121,185,054.55
Step by Step Solution
- Step 1: Write the proportion equation
1,438,937,671,190.80 : 2,158,423,087,692.90 = 520,076,794,799.70 : x - Step 2: Convert to fraction form
1,438,937,671,190.80/2,158,423,087,692.90 = 520,076,794,799.70/x - Step 3: Cross multiply
1,438,937,671,190.80x = 2,158,423,087,692.90 × 520,076,794,799.70 - Step 4: Simplify right side
1,438,937,671,190.80x = 1,122,545,761,268,995,157,131,264 - Step 5: Solve for x
x = 1,122,545,761,268,995,157,131,264/1,438,937,671,190.80 - Step 6: Final answer
x = 780,121,185,054.55
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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.