Finding the Fourth Proportional to 15,877,099.99, 21,911,718.58 and 8,813,358.08
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Solution
The fourth proportional to 15,877,099.99, 21,911,718.58 and 8,813,358.08 is: 12,163,167.21
Step by Step Solution
- Step 1: Write the proportion equation
15,877,099.99 : 21,911,718.58 = 8,813,358.08 : x - Step 2: Convert to fraction form
15,877,099.99/21,911,718.58 = 8,813,358.08/x - Step 3: Cross multiply
15,877,099.99x = 21,911,718.58 × 8,813,358.08 - Step 4: Simplify right side
15,877,099.99x = 193,115,821,950,677.38 - Step 5: Solve for x
x = 193,115,821,950,677.38/15,877,099.99 - Step 6: Final answer
x = 12,163,167.21
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1.5x scale
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.