Finding the Fourth Proportional to 266,765,764.65, 368,128,848.54 and 147,693,663.70
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Solution
The fourth proportional to 266,765,764.65, 368,128,848.54 and 147,693,663.70 is: 203,812,878.41
Step by Step Solution
- Step 1: Write the proportion equation
266,765,764.65 : 368,128,848.54 = 147,693,663.70 : x - Step 2: Convert to fraction form
266,765,764.65/368,128,848.54 = 147,693,663.70/x - Step 3: Cross multiply
266,765,764.65x = 368,128,848.54 × 147,693,663.70 - Step 4: Simplify right side
266,765,764.65x = 54,370,298,354,534,992 - Step 5: Solve for x
x = 54,370,298,354,534,992/266,765,764.65 - Step 6: Final answer
x = 203,812,878.41
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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.