Finding the Fourth Proportional to 19,012,292,130.60, 28,518,438,195.90 and 18,206,202,421.80
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Solution
The fourth proportional to 19,012,292,130.60, 28,518,438,195.90 and 18,206,202,421.80 is: 27,309,303,632.70
Step by Step Solution
- Step 1: Write the proportion equation
19,012,292,130.60 : 28,518,438,195.90 = 18,206,202,421.80 : x - Step 2: Convert to fraction form
19,012,292,130.60/28,518,438,195.90 = 18,206,202,421.80/x - Step 3: Cross multiply
19,012,292,130.60x = 28,518,438,195.90 × 18,206,202,421.80 - Step 4: Simplify right side
19,012,292,130.60x = 519,212,458,548,148,240,384 - Step 5: Solve for x
x = 519,212,458,548,148,240,384/19,012,292,130.60 - Step 6: Final answer
x = 27,309,303,632.70
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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.