Finding the Fourth Proportional to 1,062,886,243.20, 1,594,329,364.80 and 787,387,228.80
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Solution
The fourth proportional to 1,062,886,243.20, 1,594,329,364.80 and 787,387,228.80 is: 1,181,080,843.20
Step by Step Solution
- Step 1: Write the proportion equation
1,062,886,243.20 : 1,594,329,364.80 = 787,387,228.80 : x - Step 2: Convert to fraction form
1,062,886,243.20/1,594,329,364.80 = 787,387,228.80/x - Step 3: Cross multiply
1,062,886,243.20x = 1,594,329,364.80 × 787,387,228.80 - Step 4: Simplify right side
1,062,886,243.20x = 1,255,354,580,344,336,128 - Step 5: Solve for x
x = 1,255,354,580,344,336,128/1,062,886,243.20 - Step 6: Final answer
x = 1,181,080,843.20
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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.