Finding the Fourth Proportional to 639,781,417.99, 960,117,622.79 and 225,291,625.29
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Solution
The fourth proportional to 639,781,417.99, 960,117,622.79 and 225,291,625.29 is: 338,094,314.13
Step by Step Solution
- Step 1: Write the proportion equation
639,781,417.99 : 960,117,622.79 = 225,291,625.29 : x - Step 2: Convert to fraction form
639,781,417.99/960,117,622.79 = 225,291,625.29/x - Step 3: Cross multiply
639,781,417.99x = 960,117,622.79 × 225,291,625.29 - Step 4: Simplify right side
639,781,417.99x = 216,306,459,707,930,240 - Step 5: Solve for x
x = 216,306,459,707,930,240/639,781,417.99 - Step 6: Final answer
x = 338,094,314.13
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.