Finding the Fourth Proportional to 430,439,334.48, 645,654,746.79 and 197,203,888.62
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Solution
The fourth proportional to 430,439,334.48, 645,654,746.79 and 197,203,888.62 is: 295,803,883.55
Step by Step Solution
- Step 1: Write the proportion equation
430,439,334.48 : 645,654,746.79 = 197,203,888.62 : x - Step 2: Convert to fraction form
430,439,334.48/645,654,746.79 = 197,203,888.62/x - Step 3: Cross multiply
430,439,334.48x = 645,654,746.79 × 197,203,888.62 - Step 4: Simplify right side
430,439,334.48x = 127,325,626,772,949,456 - Step 5: Solve for x
x = 127,325,626,772,949,456/430,439,334.48 - Step 6: Final answer
x = 295,803,883.55
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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.