Finding the Fourth Proportional to 1,289,439,494.52, 1,779,432,528.36 and 732,553,099.44
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Solution
The fourth proportional to 1,289,439,494.52, 1,779,432,528.36 and 732,553,099.44 is: 1,010,926,700.66
Step by Step Solution
- Step 1: Write the proportion equation
1,289,439,494.52 : 1,779,432,528.36 = 732,553,099.44 : x - Step 2: Convert to fraction form
1,289,439,494.52/1,779,432,528.36 = 732,553,099.44/x - Step 3: Cross multiply
1,289,439,494.52x = 1,779,432,528.36 × 732,553,099.44 - Step 4: Simplify right side
1,289,439,494.52x = 1,303,528,813,894,473,728 - Step 5: Solve for x
x = 1,303,528,813,894,473,728/1,289,439,494.52 - Step 6: Final answer
x = 1,010,926,700.66
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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.