Finding the Fourth Proportional to 983,473,256.80, 1,475,209,885.20 and 927,038,159.20
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Solution
The fourth proportional to 983,473,256.80, 1,475,209,885.20 and 927,038,159.20 is: 1,390,557,238.80
Step by Step Solution
- Step 1: Write the proportion equation
983,473,256.80 : 1,475,209,885.20 = 927,038,159.20 : x - Step 2: Convert to fraction form
983,473,256.80/1,475,209,885.20 = 927,038,159.20/x - Step 3: Cross multiply
983,473,256.80x = 1,475,209,885.20 × 927,038,159.20 - Step 4: Simplify right side
983,473,256.80x = 1,367,575,856,409,451,520 - Step 5: Solve for x
x = 1,367,575,856,409,451,520/983,473,256.80 - Step 6: Final answer
x = 1,390,557,238.80
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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.