Finding the Fourth Proportional to 687,625,931.20, 1,029,171,415.20 and 483,552,587.20
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Solution
The fourth proportional to 687,625,931.20, 1,029,171,415.20 and 483,552,587.20 is: 723,734,341.47
Step by Step Solution
- Step 1: Write the proportion equation
687,625,931.20 : 1,029,171,415.20 = 483,552,587.20 : x - Step 2: Convert to fraction form
687,625,931.20/1,029,171,415.20 = 483,552,587.20/x - Step 3: Cross multiply
687,625,931.20x = 1,029,171,415.20 × 483,552,587.20 - Step 4: Simplify right side
687,625,931.20x = 497,658,500,492,245,440 - Step 5: Solve for x
x = 497,658,500,492,245,440/687,625,931.20 - Step 6: Final answer
x = 723,734,341.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.