Finding the Fourth Proportional to 1,048,954,285.20, 1,447,549,549.65 and 572,644,653.99
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Solution
The fourth proportional to 1,048,954,285.20, 1,447,549,549.65 and 572,644,653.99 is: 790,245,602.40
Step by Step Solution
- Step 1: Write the proportion equation
1,048,954,285.20 : 1,447,549,549.65 = 572,644,653.99 : x - Step 2: Convert to fraction form
1,048,954,285.20/1,447,549,549.65 = 572,644,653.99/x - Step 3: Cross multiply
1,048,954,285.20x = 1,447,549,549.65 × 572,644,653.99 - Step 4: Simplify right side
1,048,954,285.20x = 828,931,510,992,704,640 - Step 5: Solve for x
x = 828,931,510,992,704,640/1,048,954,285.20 - Step 6: Final answer
x = 790,245,602.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.