Finding the Fourth Proportional to 91,037,281.71, 125,641,184.70 and 55,778,486.03
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Solution
The fourth proportional to 91,037,281.71, 125,641,184.70 and 55,778,486.03 is: 76,980,275.92
Step by Step Solution
- Step 1: Write the proportion equation
91,037,281.71 : 125,641,184.70 = 55,778,486.03 : x - Step 2: Convert to fraction form
91,037,281.71/125,641,184.70 = 55,778,486.03/x - Step 3: Cross multiply
91,037,281.71x = 125,641,184.70 × 55,778,486.03 - Step 4: Simplify right side
91,037,281.71x = 7,008,075,064,953,394 - Step 5: Solve for x
x = 7,008,075,064,953,394/91,037,281.71 - Step 6: Final answer
x = 76,980,275.92
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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.