Finding the Fourth Proportional to 875,660,475.48, 1,208,411,334.99 and 479,183,359.95
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Solution
The fourth proportional to 875,660,475.48, 1,208,411,334.99 and 479,183,359.95 is: 661,272,970.42
Step by Step Solution
- Step 1: Write the proportion equation
875,660,475.48 : 1,208,411,334.99 = 479,183,359.95 : x - Step 2: Convert to fraction form
875,660,475.48/1,208,411,334.99 = 479,183,359.95/x - Step 3: Cross multiply
875,660,475.48x = 1,208,411,334.99 × 479,183,359.95 - Step 4: Simplify right side
875,660,475.48x = 579,050,603,702,173,184 - Step 5: Solve for x
x = 579,050,603,702,173,184/875,660,475.48 - Step 6: Final answer
x = 661,272,970.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.