Finding the Fourth Proportional to 71,700,239,993.97, 98,955,007,678.86 and 40,808,035,818.75
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Solution
The fourth proportional to 71,700,239,993.97, 98,955,007,678.86 and 40,808,035,818.75 is: 56,320,027,633.70
Step by Step Solution
- Step 1: Write the proportion equation
71,700,239,993.97 : 98,955,007,678.86 = 40,808,035,818.75 : x - Step 2: Convert to fraction form
71,700,239,993.97/98,955,007,678.86 = 40,808,035,818.75/x - Step 3: Cross multiply
71,700,239,993.97x = 98,955,007,678.86 × 40,808,035,818.75 - Step 4: Simplify right side
71,700,239,993.97x = 4,038,159,497,803,599,970,304 - Step 5: Solve for x
x = 4,038,159,497,803,599,970,304/71,700,239,993.97 - Step 6: Final answer
x = 56,320,027,633.70
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1.5x scale
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.