Finding the Fourth Proportional to 507,432,919.20, 708,875,536.80 and 507,432,919.20
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Solution
The fourth proportional to 507,432,919.20, 708,875,536.80 and 507,432,919.20 is: 708,875,536.80
Step by Step Solution
- Step 1: Write the proportion equation
507,432,919.20 : 708,875,536.80 = 507,432,919.20 : x - Step 2: Convert to fraction form
507,432,919.20/708,875,536.80 = 507,432,919.20/x - Step 3: Cross multiply
507,432,919.20x = 708,875,536.80 × 507,432,919.20 - Step 4: Simplify right side
507,432,919.20x = 359,706,782,987,891,008 - Step 5: Solve for x
x = 359,706,782,987,891,008/507,432,919.20 - Step 6: Final answer
x = 708,875,536.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.