Finding the Fourth Proportional to 453,411,468.99, 679,408,615.49 and 315,506,515.30
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Solution
The fourth proportional to 453,411,468.99, 679,408,615.49 and 315,506,515.30 is: 472,766,701.77
Step by Step Solution
- Step 1: Write the proportion equation
453,411,468.99 : 679,408,615.49 = 315,506,515.30 : x - Step 2: Convert to fraction form
453,411,468.99/679,408,615.49 = 315,506,515.30/x - Step 3: Cross multiply
453,411,468.99x = 679,408,615.49 × 315,506,515.30 - Step 4: Simplify right side
453,411,468.99x = 214,357,844,738,047,520 - Step 5: Solve for x
x = 214,357,844,738,047,520/453,411,468.99 - Step 6: Final answer
x = 472,766,701.77
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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.