Finding the Fourth Proportional to 456,658,821.36, 630,189,585.59 and 247,814,966.07
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Solution
The fourth proportional to 456,658,821.36, 630,189,585.59 and 247,814,966.07 is: 341,984,876.82
Step by Step Solution
- Step 1: Write the proportion equation
456,658,821.36 : 630,189,585.59 = 247,814,966.07 : x - Step 2: Convert to fraction form
456,658,821.36/630,189,585.59 = 247,814,966.07/x - Step 3: Cross multiply
456,658,821.36x = 630,189,585.59 × 247,814,966.07 - Step 4: Simplify right side
456,658,821.36x = 156,170,410,769,414,144 - Step 5: Solve for x
x = 156,170,410,769,414,144/456,658,821.36 - Step 6: Final answer
x = 341,984,876.82
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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.