Finding the Fourth Proportional to 935,080,475.20, 1,402,620,712.80 and 390,213,044.80
Calculator
Solution
The fourth proportional to 935,080,475.20, 1,402,620,712.80 and 390,213,044.80 is: 585,319,567.20
Step by Step Solution
- Step 1: Write the proportion equation
935,080,475.20 : 1,402,620,712.80 = 390,213,044.80 : x - Step 2: Convert to fraction form
935,080,475.20/1,402,620,712.80 = 390,213,044.80/x - Step 3: Cross multiply
935,080,475.20x = 1,402,620,712.80 × 390,213,044.80 - Step 4: Simplify right side
935,080,475.20x = 547,320,899,041,234,304 - Step 5: Solve for x
x = 547,320,899,041,234,304/935,080,475.20 - Step 6: Final answer
x = 585,319,567.20
Related Problems
Find fourth proportional to 467,540,237.60, 701,310,356.40 and 195,106,522.40
Half scale
Find fourth proportional to 1,870,160,950.40, 2,805,241,425.60 and 780,426,089.60
Double scale
Find fourth proportional to 935,080,476.20, 1,402,620,714.30 and 390,213,045.80
Similar ratio
Find fourth proportional to 1,402,620,712.80, 2,103,931,069.20 and 585,319,567.20
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.