Finding the Fourth Proportional to 709,850,542.28, 979,575,701.36 and 396,587,108.93
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Solution
The fourth proportional to 709,850,542.28, 979,575,701.36 and 396,587,108.93 is: 547,280,127.63
Step by Step Solution
- Step 1: Write the proportion equation
709,850,542.28 : 979,575,701.36 = 396,587,108.93 : x - Step 2: Convert to fraction form
709,850,542.28/979,575,701.36 = 396,587,108.93/x - Step 3: Cross multiply
709,850,542.28x = 979,575,701.36 × 396,587,108.93 - Step 4: Simplify right side
709,850,542.28x = 388,487,095,373,558,656 - Step 5: Solve for x
x = 388,487,095,373,558,656/709,850,542.28 - Step 6: Final answer
x = 547,280,127.63
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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.