Finding the Fourth Proportional to 1,702,450,807.20, 2,553,676,210.80 and 1,120,841,776.80
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Solution
The fourth proportional to 1,702,450,807.20, 2,553,676,210.80 and 1,120,841,776.80 is: 1,681,262,665.20
Step by Step Solution
- Step 1: Write the proportion equation
1,702,450,807.20 : 2,553,676,210.80 = 1,120,841,776.80 : x - Step 2: Convert to fraction form
1,702,450,807.20/2,553,676,210.80 = 1,120,841,776.80/x - Step 3: Cross multiply
1,702,450,807.20x = 2,553,676,210.80 × 1,120,841,776.80 - Step 4: Simplify right side
1,702,450,807.20x = 2,862,266,981,484,963,328 - Step 5: Solve for x
x = 2,862,266,981,484,963,328/1,702,450,807.20 - Step 6: Final answer
x = 1,681,262,665.20
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1.5x scale
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.