Finding the Fourth Proportional to 1,417,216,341.20, 2,125,824,511.80 and 448,165,000.40
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Solution
The fourth proportional to 1,417,216,341.20, 2,125,824,511.80 and 448,165,000.40 is: 672,247,500.60
Step by Step Solution
- Step 1: Write the proportion equation
1,417,216,341.20 : 2,125,824,511.80 = 448,165,000.40 : x - Step 2: Convert to fraction form
1,417,216,341.20/2,125,824,511.80 = 448,165,000.40/x - Step 3: Cross multiply
1,417,216,341.20x = 2,125,824,511.80 × 448,165,000.40 - Step 4: Simplify right side
1,417,216,341.20x = 952,720,143,181,176,704 - Step 5: Solve for x
x = 952,720,143,181,176,704/1,417,216,341.20 - Step 6: Final answer
x = 672,247,500.60
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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.