Finding the Fourth Proportional to 403,704,973.26, 557,113,087.35 and 218,065,990.50
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Solution
The fourth proportional to 403,704,973.26, 557,113,087.35 and 218,065,990.50 is: 300,931,188.02
Step by Step Solution
- Step 1: Write the proportion equation
403,704,973.26 : 557,113,087.35 = 218,065,990.50 : x - Step 2: Convert to fraction form
403,704,973.26/557,113,087.35 = 218,065,990.50/x - Step 3: Cross multiply
403,704,973.26x = 557,113,087.35 × 218,065,990.50 - Step 4: Simplify right side
403,704,973.26x = 121,487,417,213,490,768 - Step 5: Solve for x
x = 121,487,417,213,490,768/403,704,973.26 - Step 6: Final answer
x = 300,931,188.02
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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.