Finding the Fourth Proportional to 555,254,146.74, 765,803,932.21 and 488,129,582.82
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Solution
The fourth proportional to 555,254,146.74, 765,803,932.21 and 488,129,582.82 is: 673,226,046.38
Step by Step Solution
- Step 1: Write the proportion equation
555,254,146.74 : 765,803,932.21 = 488,129,582.82 : x - Step 2: Convert to fraction form
555,254,146.74/765,803,932.21 = 488,129,582.82/x - Step 3: Cross multiply
555,254,146.74x = 765,803,932.21 × 488,129,582.82 - Step 4: Simplify right side
555,254,146.74x = 373,811,553,951,878,528 - Step 5: Solve for x
x = 373,811,553,951,878,528/555,254,146.74 - Step 6: Final answer
x = 673,226,046.38
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1.5x scale
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.