Finding the Fourth Proportional to 539,136,547.70, 808,704,821.55 and 449,557,027.70
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Solution
The fourth proportional to 539,136,547.70, 808,704,821.55 and 449,557,027.70 is: 674,335,541.55
Step by Step Solution
- Step 1: Write the proportion equation
539,136,547.70 : 808,704,821.55 = 449,557,027.70 : x - Step 2: Convert to fraction form
539,136,547.70/808,704,821.55 = 449,557,027.70/x - Step 3: Cross multiply
539,136,547.70x = 808,704,821.55 × 449,557,027.70 - Step 4: Simplify right side
539,136,547.70x = 363,558,935,862,676,864 - Step 5: Solve for x
x = 363,558,935,862,676,864/539,136,547.70 - Step 6: Final answer
x = 674,335,541.55
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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.