Finding the Fourth Proportional to 435,480,516.60, 653,220,774.90 and 432,457,207.80
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Solution
The fourth proportional to 435,480,516.60, 653,220,774.90 and 432,457,207.80 is: 648,685,811.70
Step by Step Solution
- Step 1: Write the proportion equation
435,480,516.60 : 653,220,774.90 = 432,457,207.80 : x - Step 2: Convert to fraction form
435,480,516.60/653,220,774.90 = 432,457,207.80/x - Step 3: Cross multiply
435,480,516.60x = 653,220,774.90 × 432,457,207.80 - Step 4: Simplify right side
435,480,516.60x = 282,490,032,390,206,336 - Step 5: Solve for x
x = 282,490,032,390,206,336/435,480,516.60 - Step 6: Final answer
x = 648,685,811.70
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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.