Finding the Fourth Proportional to 983,472,941.80, 1,475,209,412.70 and 927,037,844.20
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Solution
The fourth proportional to 983,472,941.80, 1,475,209,412.70 and 927,037,844.20 is: 1,390,556,766.30
Step by Step Solution
- Step 1: Write the proportion equation
983,472,941.80 : 1,475,209,412.70 = 927,037,844.20 : x - Step 2: Convert to fraction form
983,472,941.80/1,475,209,412.70 = 927,037,844.20/x - Step 3: Cross multiply
983,472,941.80x = 1,475,209,412.70 × 927,037,844.20 - Step 4: Simplify right side
983,472,941.80x = 1,367,574,953,692,956,160 - Step 5: Solve for x
x = 1,367,574,953,692,956,160/983,472,941.80 - Step 6: Final answer
x = 1,390,556,766.30
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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.