Finding the Fourth Proportional to 1,631,997,327.60, 2,447,756,842.94 and 802,728,376.74
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Solution
The fourth proportional to 1,631,997,327.60, 2,447,756,842.94 and 802,728,376.74 is: 1,203,974,935.47
Step by Step Solution
- Step 1: Write the proportion equation
1,631,997,327.60 : 2,447,756,842.94 = 802,728,376.74 : x - Step 2: Convert to fraction form
1,631,997,327.60/2,447,756,842.94 = 802,728,376.74/x - Step 3: Cross multiply
1,631,997,327.60x = 2,447,756,842.94 × 802,728,376.74 - Step 4: Simplify right side
1,631,997,327.60x = 1,964,883,877,187,453,440 - Step 5: Solve for x
x = 1,964,883,877,187,453,440/1,631,997,327.60 - Step 6: Final answer
x = 1,203,974,935.47
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1.5x scale
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.