Finding the Fourth Proportional to 453,411,472.75, 679,408,621.09 and 315,506,519.07
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Solution
The fourth proportional to 453,411,472.75, 679,408,621.09 and 315,506,519.07 is: 472,766,707.39
Step by Step Solution
- Step 1: Write the proportion equation
453,411,472.75 : 679,408,621.09 = 315,506,519.07 : x - Step 2: Convert to fraction form
453,411,472.75/679,408,621.09 = 315,506,519.07/x - Step 3: Cross multiply
453,411,472.75x = 679,408,621.09 × 315,506,519.07 - Step 4: Simplify right side
453,411,472.75x = 214,357,849,066,254,496 - Step 5: Solve for x
x = 214,357,849,066,254,496/453,411,472.75 - Step 6: Final answer
x = 472,766,707.39
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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.