Finding the Fourth Proportional to 425,309,981.87, 586,537,723.86 and 291,542,296.36
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Solution
The fourth proportional to 425,309,981.87, 586,537,723.86 and 291,542,296.36 is: 402,060,995.99
Step by Step Solution
- Step 1: Write the proportion equation
425,309,981.87 : 586,537,723.86 = 291,542,296.36 : x - Step 2: Convert to fraction form
425,309,981.87/586,537,723.86 = 291,542,296.36/x - Step 3: Cross multiply
425,309,981.87x = 586,537,723.86 × 291,542,296.36 - Step 4: Simplify right side
425,309,981.87x = 171,000,554,915,911,968 - Step 5: Solve for x
x = 171,000,554,915,911,968/425,309,981.87 - Step 6: Final answer
x = 402,060,995.99
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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.