Finding the Fourth Proportional to 6,389,966,783.80, 9,584,950,175.70 and 5,301,575,615.80
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Solution
The fourth proportional to 6,389,966,783.80, 9,584,950,175.70 and 5,301,575,615.80 is: 7,952,363,423.70
Step by Step Solution
- Step 1: Write the proportion equation
6,389,966,783.80 : 9,584,950,175.70 = 5,301,575,615.80 : x - Step 2: Convert to fraction form
6,389,966,783.80/9,584,950,175.70 = 5,301,575,615.80/x - Step 3: Cross multiply
6,389,966,783.80x = 9,584,950,175.70 × 5,301,575,615.80 - Step 4: Simplify right side
6,389,966,783.80x = 50,815,338,130,149,048,320 - Step 5: Solve for x
x = 50,815,338,130,149,048,320/6,389,966,783.80 - Step 6: Final answer
x = 7,952,363,423.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.