Finding the Fourth Proportional to 939,390,852.20, 1,409,086,278.30 and 794,272,029.80
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Solution
The fourth proportional to 939,390,852.20, 1,409,086,278.30 and 794,272,029.80 is: 1,191,408,044.70
Step by Step Solution
- Step 1: Write the proportion equation
939,390,852.20 : 1,409,086,278.30 = 794,272,029.80 : x - Step 2: Convert to fraction form
939,390,852.20/1,409,086,278.30 = 794,272,029.80/x - Step 3: Cross multiply
939,390,852.20x = 1,409,086,278.30 × 794,272,029.80 - Step 4: Simplify right side
939,390,852.20x = 1,119,197,818,428,668,544 - Step 5: Solve for x
x = 1,119,197,818,428,668,544/939,390,852.20 - Step 6: Final answer
x = 1,191,408,044.70
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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.