Finding the Fourth Proportional to 1,679,617,427.20, 2,519,426,140.80 and 1,611,592,979.20
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Solution
The fourth proportional to 1,679,617,427.20, 2,519,426,140.80 and 1,611,592,979.20 is: 2,417,389,468.80
Step by Step Solution
- Step 1: Write the proportion equation
1,679,617,427.20 : 2,519,426,140.80 = 1,611,592,979.20 : x - Step 2: Convert to fraction form
1,679,617,427.20/2,519,426,140.80 = 1,611,592,979.20/x - Step 3: Cross multiply
1,679,617,427.20x = 2,519,426,140.80 × 1,611,592,979.20 - Step 4: Simplify right side
1,679,617,427.20x = 4,060,289,480,126,231,040 - Step 5: Solve for x
x = 4,060,289,480,126,231,040/1,679,617,427.20 - Step 6: Final answer
x = 2,417,389,468.80
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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.