Finding the Fourth Proportional to 1,326,926,557.68, 1,831,197,566.88 and 724,136,101.80
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Solution
The fourth proportional to 1,326,926,557.68, 1,831,197,566.88 and 724,136,101.80 is: 999,329,058.59
Step by Step Solution
- Step 1: Write the proportion equation
1,326,926,557.68 : 1,831,197,566.88 = 724,136,101.80 : x - Step 2: Convert to fraction form
1,326,926,557.68/1,831,197,566.88 = 724,136,101.80/x - Step 3: Cross multiply
1,326,926,557.68x = 1,831,197,566.88 × 724,136,101.80 - Step 4: Simplify right side
1,326,926,557.68x = 1,326,036,267,706,127,872 - Step 5: Solve for x
x = 1,326,036,267,706,127,872/1,326,926,557.68 - Step 6: Final answer
x = 999,329,058.59
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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.