Finding the Fourth Proportional to 465,408,727.80, 698,113,091.70 and 393,745,111.80
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Solution
The fourth proportional to 465,408,727.80, 698,113,091.70 and 393,745,111.80 is: 590,617,667.70
Step by Step Solution
- Step 1: Write the proportion equation
465,408,727.80 : 698,113,091.70 = 393,745,111.80 : x - Step 2: Convert to fraction form
465,408,727.80/698,113,091.70 = 393,745,111.80/x - Step 3: Cross multiply
465,408,727.80x = 698,113,091.70 × 393,745,111.80 - Step 4: Simplify right side
465,408,727.80x = 274,878,617,340,460,192 - Step 5: Solve for x
x = 274,878,617,340,460,192/465,408,727.80 - Step 6: Final answer
x = 590,617,667.70
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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.