Finding the Fourth Proportional to 442,354,708.80, 663,507,262.08 and 135,645,979.68
Calculator
Solution
The fourth proportional to 442,354,708.80, 663,507,262.08 and 135,645,979.68 is: 203,461,364.37
Step by Step Solution
- Step 1: Write the proportion equation
442,354,708.80 : 663,507,262.08 = 135,645,979.68 : x - Step 2: Convert to fraction form
442,354,708.80/663,507,262.08 = 135,645,979.68/x - Step 3: Cross multiply
442,354,708.80x = 663,507,262.08 × 135,645,979.68 - Step 4: Simplify right side
442,354,708.80x = 90,002,092,589,636,128 - Step 5: Solve for x
x = 90,002,092,589,636,128/442,354,708.80 - Step 6: Final answer
x = 203,461,364.37
Related Problems
Find fourth proportional to 221,177,354.40, 331,753,631.04 and 67,822,989.84
Half scale
Find fourth proportional to 884,709,417.60, 1,327,014,524.16 and 271,291,959.36
Double scale
Find fourth proportional to 442,354,709.80, 663,507,263.58 and 135,645,980.68
Similar ratio
Find fourth proportional to 663,532,063.20, 995,260,893.12 and 203,468,969.52
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.