Finding the Fourth Proportional to 709,850,532.79, 979,575,688.23 and 396,587,099.44
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Solution
The fourth proportional to 709,850,532.79, 979,575,688.23 and 396,587,099.44 is: 547,280,114.52
Step by Step Solution
- Step 1: Write the proportion equation
709,850,532.79 : 979,575,688.23 = 396,587,099.44 : x - Step 2: Convert to fraction form
709,850,532.79/979,575,688.23 = 396,587,099.44/x - Step 3: Cross multiply
709,850,532.79x = 979,575,688.23 × 396,587,099.44 - Step 4: Simplify right side
709,850,532.79x = 388,487,080,877,077,440 - Step 5: Solve for x
x = 388,487,080,877,077,440/709,850,532.79 - Step 6: Final answer
x = 547,280,114.52
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1.5x scale
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.