Finding the Fourth Proportional to 312,804,913.70, 469,065,652.95 and 118,651,801.70
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Solution
The fourth proportional to 312,804,913.70, 469,065,652.95 and 118,651,801.70 is: 177,923,946.85
Step by Step Solution
- Step 1: Write the proportion equation
312,804,913.70 : 469,065,652.95 = 118,651,801.70 : x - Step 2: Convert to fraction form
312,804,913.70/469,065,652.95 = 118,651,801.70/x - Step 3: Cross multiply
312,804,913.70x = 469,065,652.95 × 118,651,801.70 - Step 4: Simplify right side
312,804,913.70x = 55,655,484,838,104,416 - Step 5: Solve for x
x = 55,655,484,838,104,416/312,804,913.70 - Step 6: Final answer
x = 177,923,946.85
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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.