Finding the Fourth Proportional to 497,918,574.66, 687,187,886.28 and 283,389,378.68
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Solution
The fourth proportional to 497,918,574.66, 687,187,886.28 and 283,389,378.68 is: 391,111,635.60
Step by Step Solution
- Step 1: Write the proportion equation
497,918,574.66 : 687,187,886.28 = 283,389,378.68 : x - Step 2: Convert to fraction form
497,918,574.66/687,187,886.28 = 283,389,378.68/x - Step 3: Cross multiply
497,918,574.66x = 687,187,886.28 × 283,389,378.68 - Step 4: Simplify right side
497,918,574.66x = 194,741,748,129,311,680 - Step 5: Solve for x
x = 194,741,748,129,311,680/497,918,574.66 - Step 6: Final answer
x = 391,111,635.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.