Finding the Fourth Proportional to 630,136,549.70, 869,526,281.10 and 347,860,660.58
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Solution
The fourth proportional to 630,136,549.70, 869,526,281.10 and 347,860,660.58 is: 480,013,398.17
Step by Step Solution
- Step 1: Write the proportion equation
630,136,549.70 : 869,526,281.10 = 347,860,660.58 : x - Step 2: Convert to fraction form
630,136,549.70/869,526,281.10 = 347,860,660.58/x - Step 3: Cross multiply
630,136,549.70x = 869,526,281.10 × 347,860,660.58 - Step 4: Simplify right side
630,136,549.70x = 302,473,986,535,116,736 - Step 5: Solve for x
x = 302,473,986,535,116,736/630,136,549.70 - Step 6: Final answer
x = 480,013,398.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.