Finding the Fourth Proportional to 122,205,726.32, 168,602,631.89 and 69,276,759.08
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Solution
The fourth proportional to 122,205,726.32, 168,602,631.89 and 69,276,759.08 is: 95,578,531.88
Step by Step Solution
- Step 1: Write the proportion equation
122,205,726.32 : 168,602,631.89 = 69,276,759.08 : x - Step 2: Convert to fraction form
122,205,726.32/168,602,631.89 = 69,276,759.08/x - Step 3: Cross multiply
122,205,726.32x = 168,602,631.89 × 69,276,759.08 - Step 4: Simplify right side
122,205,726.32x = 11,680,243,908,508,058 - Step 5: Solve for x
x = 11,680,243,908,508,058/122,205,726.32 - Step 6: Final answer
x = 95,578,531.88
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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.