Finding the Fourth Proportional to 2,876,645,125.80, 4,314,967,688.70 and 1,326,963,169.80
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Solution
The fourth proportional to 2,876,645,125.80, 4,314,967,688.70 and 1,326,963,169.80 is: 1,990,444,754.70
Step by Step Solution
- Step 1: Write the proportion equation
2,876,645,125.80 : 4,314,967,688.70 = 1,326,963,169.80 : x - Step 2: Convert to fraction form
2,876,645,125.80/4,314,967,688.70 = 1,326,963,169.80/x - Step 3: Cross multiply
2,876,645,125.80x = 4,314,967,688.70 × 1,326,963,169.80 - Step 4: Simplify right side
2,876,645,125.80x = 5,725,803,201,781,931,008 - Step 5: Solve for x
x = 5,725,803,201,781,931,008/2,876,645,125.80 - Step 6: Final answer
x = 1,990,444,754.70
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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.