Finding the Fourth Proportional to 620,541,430.64, 856,352,950.50 and 342,092,918.60
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Solution
The fourth proportional to 620,541,430.64, 856,352,950.50 and 342,092,918.60 is: 472,091,411.99
Step by Step Solution
- Step 1: Write the proportion equation
620,541,430.64 : 856,352,950.50 = 342,092,918.60 : x - Step 2: Convert to fraction form
620,541,430.64/856,352,950.50 = 342,092,918.60/x - Step 3: Cross multiply
620,541,430.64x = 856,352,950.50 × 342,092,918.60 - Step 4: Simplify right side
620,541,430.64x = 292,952,280,188,266,368 - Step 5: Solve for x
x = 292,952,280,188,266,368/620,541,430.64 - Step 6: Final answer
x = 472,091,411.99
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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.