Finding the Fourth Proportional to 43,920,078.84, 65,487,461.48 and 42,713,409.68
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Solution
The fourth proportional to 43,920,078.84, 65,487,461.48 and 42,713,409.68 is: 63,688,245.67
Step by Step Solution
- Step 1: Write the proportion equation
43,920,078.84 : 65,487,461.48 = 42,713,409.68 : x - Step 2: Convert to fraction form
43,920,078.84/65,487,461.48 = 42,713,409.68/x - Step 3: Cross multiply
43,920,078.84x = 65,487,461.48 × 42,713,409.68 - Step 4: Simplify right side
43,920,078.84x = 2,797,192,771,098,459 - Step 5: Solve for x
x = 2,797,192,771,098,459/43,920,078.84 - Step 6: Final answer
x = 63,688,245.67
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.