Finding the Fourth Proportional to 889,529,397.60, 1,227,548,449.86 and 487,642,432.52
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Solution
The fourth proportional to 889,529,397.60, 1,227,548,449.86 and 487,642,432.52 is: 672,945,395.33
Step by Step Solution
- Step 1: Write the proportion equation
889,529,397.60 : 1,227,548,449.86 = 487,642,432.52 : x - Step 2: Convert to fraction form
889,529,397.60/1,227,548,449.86 = 487,642,432.52/x - Step 3: Cross multiply
889,529,397.60x = 1,227,548,449.86 × 487,642,432.52 - Step 4: Simplify right side
889,529,397.60x = 598,604,712,125,885,568 - Step 5: Solve for x
x = 598,604,712,125,885,568/889,529,397.60 - Step 6: Final answer
x = 672,945,395.33
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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.