Finding the Fourth Proportional to 19,281,982.79, 28,922,639.19 and 7,767,155.68
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Solution
The fourth proportional to 19,281,982.79, 28,922,639.19 and 7,767,155.68 is: 11,650,598.58
Step by Step Solution
- Step 1: Write the proportion equation
19,281,982.79 : 28,922,639.19 = 7,767,155.68 : x - Step 2: Convert to fraction form
19,281,982.79/28,922,639.19 = 7,767,155.68/x - Step 3: Cross multiply
19,281,982.79x = 28,922,639.19 × 7,767,155.68 - Step 4: Simplify right side
19,281,982.79x = 224,646,641,226,363.31 - Step 5: Solve for x
x = 224,646,641,226,363.31/19,281,982.79 - Step 6: Final answer
x = 11,650,598.58
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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.