Finding the Fourth Proportional to 1,225,168,419.64, 1,690,875,357.71 and 696,611,602.44
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Solution
The fourth proportional to 1,225,168,419.64, 1,690,875,357.71 and 696,611,602.44 is: 961,405,284.02
Step by Step Solution
- Step 1: Write the proportion equation
1,225,168,419.64 : 1,690,875,357.71 = 696,611,602.44 : x - Step 2: Convert to fraction form
1,225,168,419.64/1,690,875,357.71 = 696,611,602.44/x - Step 3: Cross multiply
1,225,168,419.64x = 1,690,875,357.71 × 696,611,602.44 - Step 4: Simplify right side
1,225,168,419.64x = 1,177,883,392,460,671,488 - Step 5: Solve for x
x = 1,177,883,392,460,671,488/1,225,168,419.64 - Step 6: Final answer
x = 961,405,284.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.