Finding the Fourth Proportional to 370,464,926.40, 511,356,079.08 and 238,305,925.80
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Solution
The fourth proportional to 370,464,926.40, 511,356,079.08 and 238,305,925.80 is: 328,935,818.63
Step by Step Solution
- Step 1: Write the proportion equation
370,464,926.40 : 511,356,079.08 = 238,305,925.80 : x - Step 2: Convert to fraction form
370,464,926.40/511,356,079.08 = 238,305,925.80/x - Step 3: Cross multiply
370,464,926.40x = 511,356,079.08 × 238,305,925.80 - Step 4: Simplify right side
370,464,926.40x = 121,859,183,838,617,408 - Step 5: Solve for x
x = 121,859,183,838,617,408/370,464,926.40 - Step 6: Final answer
x = 328,935,818.63
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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.