Finding the Fourth Proportional to 954,845,947.40, 1,432,268,921.10 and 909,646,890.35
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Solution
The fourth proportional to 954,845,947.40, 1,432,268,921.10 and 909,646,890.35 is: 1,364,470,335.53
Step by Step Solution
- Step 1: Write the proportion equation
954,845,947.40 : 1,432,268,921.10 = 909,646,890.35 : x - Step 2: Convert to fraction form
954,845,947.40/1,432,268,921.10 = 909,646,890.35/x - Step 3: Cross multiply
954,845,947.40x = 1,432,268,921.10 × 909,646,890.35 - Step 4: Simplify right side
954,845,947.40x = 1,302,858,970,223,564,544 - Step 5: Solve for x
x = 1,302,858,970,223,564,544/954,845,947.40 - Step 6: Final answer
x = 1,364,470,335.53
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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.