Finding the Fourth Proportional to 510,961,221.12, 766,430,832.96 and 142,486,366.08
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Solution
The fourth proportional to 510,961,221.12, 766,430,832.96 and 142,486,366.08 is: 213,726,482.02
Step by Step Solution
- Step 1: Write the proportion equation
510,961,221.12 : 766,430,832.96 = 142,486,366.08 : x - Step 2: Convert to fraction form
510,961,221.12/766,430,832.96 = 142,486,366.08/x - Step 3: Cross multiply
510,961,221.12x = 766,430,832.96 × 142,486,366.08 - Step 4: Simplify right side
510,961,221.12x = 109,205,944,240,137,904 - Step 5: Solve for x
x = 109,205,944,240,137,904/510,961,221.12 - Step 6: Final answer
x = 213,726,482.02
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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.