Finding the Fourth Proportional to 39,403,155.84, 54,375,826.68 and 21,999,768
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Solution
The fourth proportional to 39,403,155.84, 54,375,826.68 and 21,999,768 is: 30,359,384.83
Step by Step Solution
- Step 1: Write the proportion equation
39,403,155.84 : 54,375,826.68 = 21,999,768 : x - Step 2: Convert to fraction form
39,403,155.84/54,375,826.68 = 21,999,768/x - Step 3: Cross multiply
39,403,155.84x = 54,375,826.68 × 21,999,768 - Step 4: Simplify right side
39,403,155.84x = 1,196,255,571,768,210.25 - Step 5: Solve for x
x = 1,196,255,571,768,210.25/39,403,155.84 - Step 6: Final answer
x = 30,359,384.83
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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.