Finding the Fourth Proportional to 559,970,643.80, 839,955,965.70 and 524,138,835.80
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Solution
The fourth proportional to 559,970,643.80, 839,955,965.70 and 524,138,835.80 is: 786,208,253.70
Step by Step Solution
- Step 1: Write the proportion equation
559,970,643.80 : 839,955,965.70 = 524,138,835.80 : x - Step 2: Convert to fraction form
559,970,643.80/839,955,965.70 = 524,138,835.80/x - Step 3: Cross multiply
559,970,643.80x = 839,955,965.70 × 524,138,835.80 - Step 4: Simplify right side
559,970,643.80x = 440,253,541,985,262,784 - Step 5: Solve for x
x = 440,253,541,985,262,784/559,970,643.80 - Step 6: Final answer
x = 786,208,253.70
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Similar ratio
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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.