Finding the Fourth Proportional to 15,719,903.91, 21,693,314.30 and 8,750,470.95
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Solution
The fourth proportional to 15,719,903.91, 21,693,314.30 and 8,750,470.95 is: 12,075,564.69
Step by Step Solution
- Step 1: Write the proportion equation
15,719,903.91 : 21,693,314.30 = 8,750,470.95 : x - Step 2: Convert to fraction form
15,719,903.91/21,693,314.30 = 8,750,470.95/x - Step 3: Cross multiply
15,719,903.91x = 21,693,314.30 × 8,750,470.95 - Step 4: Simplify right side
15,719,903.91x = 189,826,716,547,617.22 - Step 5: Solve for x
x = 189,826,716,547,617.22/15,719,903.91 - Step 6: Final answer
x = 12,075,564.69
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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.