Finding the Fourth Proportional to 90,653,312.91, 136,006,448.28 and 29,241,111.99
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Solution
The fourth proportional to 90,653,312.91, 136,006,448.28 and 29,241,111.99 is: 43,870,209.02
Step by Step Solution
- Step 1: Write the proportion equation
90,653,312.91 : 136,006,448.28 = 29,241,111.99 : x - Step 2: Convert to fraction form
90,653,312.91/136,006,448.28 = 29,241,111.99/x - Step 3: Cross multiply
90,653,312.91x = 136,006,448.28 × 29,241,111.99 - Step 4: Simplify right side
90,653,312.91x = 3,976,979,785,517,622.50 - Step 5: Solve for x
x = 3,976,979,785,517,622.50/90,653,312.91 - Step 6: Final answer
x = 43,870,209.02
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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.