Finding the Fourth Proportional to 482,784,032.20, 724,176,048.30 and 347,742,905.80
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Solution
The fourth proportional to 482,784,032.20, 724,176,048.30 and 347,742,905.80 is: 521,614,358.70
Step by Step Solution
- Step 1: Write the proportion equation
482,784,032.20 : 724,176,048.30 = 347,742,905.80 : x - Step 2: Convert to fraction form
482,784,032.20/724,176,048.30 = 347,742,905.80/x - Step 3: Cross multiply
482,784,032.20x = 724,176,048.30 × 347,742,905.80 - Step 4: Simplify right side
482,784,032.20x = 251,827,083,346,603,136 - Step 5: Solve for x
x = 251,827,083,346,603,136/482,784,032.20 - Step 6: Final answer
x = 521,614,358.70
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1.5x scale
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.