Finding the Fourth Proportional to 974,319,621.10, 1,461,479,431.65 and 945,621,807.10
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Solution
The fourth proportional to 974,319,621.10, 1,461,479,431.65 and 945,621,807.10 is: 1,418,432,710.65
Step by Step Solution
- Step 1: Write the proportion equation
974,319,621.10 : 1,461,479,431.65 = 945,621,807.10 : x - Step 2: Convert to fraction form
974,319,621.10/1,461,479,431.65 = 945,621,807.10/x - Step 3: Cross multiply
974,319,621.10x = 1,461,479,431.65 × 945,621,807.10 - Step 4: Simplify right side
974,319,621.10x = 1,382,006,821,196,354,048 - Step 5: Solve for x
x = 1,382,006,821,196,354,048/974,319,621.10 - Step 6: Final answer
x = 1,418,432,710.65
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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.