Finding the Fourth Proportional to 2,818,185,412.70, 4,227,278,119.05 and 977,326,276.70
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Solution
The fourth proportional to 2,818,185,412.70, 4,227,278,119.05 and 977,326,276.70 is: 1,465,989,415.05
Step by Step Solution
- Step 1: Write the proportion equation
2,818,185,412.70 : 4,227,278,119.05 = 977,326,276.70 : x - Step 2: Convert to fraction form
2,818,185,412.70/4,227,278,119.05 = 977,326,276.70/x - Step 3: Cross multiply
2,818,185,412.70x = 4,227,278,119.05 × 977,326,276.70 - Step 4: Simplify right side
2,818,185,412.70x = 4,131,429,984,666,516,480 - Step 5: Solve for x
x = 4,131,429,984,666,516,480/2,818,185,412.70 - Step 6: Final answer
x = 1,465,989,415.05
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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.