Finding the Fourth Proportional to 1,877,823,052.79, 2,816,811,180.95 and 478,843,606.40
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Solution
The fourth proportional to 1,877,823,052.79, 2,816,811,180.95 and 478,843,606.40 is: 718,284,942.99
Step by Step Solution
- Step 1: Write the proportion equation
1,877,823,052.79 : 2,816,811,180.95 = 478,843,606.40 : x - Step 2: Convert to fraction form
1,877,823,052.79/2,816,811,180.95 = 478,843,606.40/x - Step 3: Cross multiply
1,877,823,052.79x = 2,816,811,180.95 × 478,843,606.40 - Step 4: Simplify right side
1,877,823,052.79x = 1,348,812,024,417,462,784 - Step 5: Solve for x
x = 1,348,812,024,417,462,784/1,877,823,052.79 - Step 6: Final answer
x = 718,284,942.99
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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.