Finding the Fourth Proportional to 402,272,140.30, 603,408,210.45 and 347,746,293.70
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Solution
The fourth proportional to 402,272,140.30, 603,408,210.45 and 347,746,293.70 is: 521,619,440.55
Step by Step Solution
- Step 1: Write the proportion equation
402,272,140.30 : 603,408,210.45 = 347,746,293.70 : x - Step 2: Convert to fraction form
402,272,140.30/603,408,210.45 = 347,746,293.70/x - Step 3: Cross multiply
402,272,140.30x = 603,408,210.45 × 347,746,293.70 - Step 4: Simplify right side
402,272,140.30x = 209,832,968,772,137,120 - Step 5: Solve for x
x = 209,832,968,772,137,120/402,272,140.30 - Step 6: Final answer
x = 521,619,440.55
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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.