Finding the Fourth Proportional to 838,326,482.16, 1,251,595,263.20 and 640,554,847.44
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Solution
The fourth proportional to 838,326,482.16, 1,251,595,263.20 and 640,554,847.44 is: 956,328,387.49
Step by Step Solution
- Step 1: Write the proportion equation
838,326,482.16 : 1,251,595,263.20 = 640,554,847.44 : x - Step 2: Convert to fraction form
838,326,482.16/1,251,595,263.20 = 640,554,847.44/x - Step 3: Cross multiply
838,326,482.16x = 1,251,595,263.20 × 640,554,847.44 - Step 4: Simplify right side
838,326,482.16x = 801,715,412,875,702,784 - Step 5: Solve for x
x = 801,715,412,875,702,784/838,326,482.16 - Step 6: Final answer
x = 956,328,387.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.