Finding the Fourth Proportional to 19,191,773.21, 28,792,709.05 and 6,896,978.62
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Solution
The fourth proportional to 19,191,773.21, 28,792,709.05 and 6,896,978.62 is: 10,347,282.48
Step by Step Solution
- Step 1: Write the proportion equation
19,191,773.21 : 28,792,709.05 = 6,896,978.62 : x - Step 2: Convert to fraction form
19,191,773.21/28,792,709.05 = 6,896,978.62/x - Step 3: Cross multiply
19,191,773.21x = 28,792,709.05 × 6,896,978.62 - Step 4: Simplify right side
19,191,773.21x = 198,582,698,729,730.53 - Step 5: Solve for x
x = 198,582,698,729,730.53/19,191,773.21 - Step 6: Final answer
x = 10,347,282.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.