Finding the Fourth Proportional to 83,639,721.08, 115,425,397.50 and 46,971,079.40
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Solution
The fourth proportional to 83,639,721.08, 115,425,397.50 and 46,971,079.40 is: 64,821,539.82
Step by Step Solution
- Step 1: Write the proportion equation
83,639,721.08 : 115,425,397.50 = 46,971,079.40 : x - Step 2: Convert to fraction form
83,639,721.08/115,425,397.50 = 46,971,079.40/x - Step 3: Cross multiply
83,639,721.08x = 115,425,397.50 × 46,971,079.40 - Step 4: Simplify right side
83,639,721.08x = 5,421,655,510,749,061 - Step 5: Solve for x
x = 5,421,655,510,749,061/83,639,721.08 - Step 6: Final answer
x = 64,821,539.82
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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.