Finding the Fourth Proportional to 1,289,439,497.74, 1,779,432,532.79 and 732,553,102.66
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Solution
The fourth proportional to 1,289,439,497.74, 1,779,432,532.79 and 732,553,102.66 is: 1,010,926,705.09
Step by Step Solution
- Step 1: Write the proportion equation
1,289,439,497.74 : 1,779,432,532.79 = 732,553,102.66 : x - Step 2: Convert to fraction form
1,289,439,497.74/1,779,432,532.79 = 732,553,102.66/x - Step 3: Cross multiply
1,289,439,497.74x = 1,779,432,532.79 × 732,553,102.66 - Step 4: Simplify right side
1,289,439,497.74x = 1,303,528,822,869,456,640 - Step 5: Solve for x
x = 1,303,528,822,869,456,640/1,289,439,497.74 - Step 6: Final answer
x = 1,010,926,705.09
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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.