Finding the Fourth Proportional to 91,037,280.21, 125,641,182.63 and 55,778,484.53
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Solution
The fourth proportional to 91,037,280.21, 125,641,182.63 and 55,778,484.53 is: 76,980,273.85
Step by Step Solution
- Step 1: Write the proportion equation
91,037,280.21 : 125,641,182.63 = 55,778,484.53 : x - Step 2: Convert to fraction form
91,037,280.21/125,641,182.63 = 55,778,484.53/x - Step 3: Cross multiply
91,037,280.21x = 125,641,182.63 × 55,778,484.53 - Step 4: Simplify right side
91,037,280.21x = 7,008,074,761,030,153 - Step 5: Solve for x
x = 7,008,074,761,030,153/91,037,280.21 - Step 6: Final answer
x = 76,980,273.85
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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.