Finding the Fourth Proportional to 256,931,494.36, 385,335,533.06 and 118,624,215.60
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Solution
The fourth proportional to 256,931,494.36, 385,335,533.06 and 118,624,215.60 is: 177,907,832.85
Step by Step Solution
- Step 1: Write the proportion equation
256,931,494.36 : 385,335,533.06 = 118,624,215.60 : x - Step 2: Convert to fraction form
256,931,494.36/385,335,533.06 = 118,624,215.60/x - Step 3: Cross multiply
256,931,494.36x = 385,335,533.06 × 118,624,215.60 - Step 4: Simplify right side
256,931,494.36x = 45,710,125,352,050,368 - Step 5: Solve for x
x = 45,710,125,352,050,368/256,931,494.36 - Step 6: Final answer
x = 177,907,832.85
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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.