Finding the Fourth Proportional to 940,982,023.20, 1,411,473,034.80 and 865,735,226.40
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Solution
The fourth proportional to 940,982,023.20, 1,411,473,034.80 and 865,735,226.40 is: 1,298,602,839.60
Step by Step Solution
- Step 1: Write the proportion equation
940,982,023.20 : 1,411,473,034.80 = 865,735,226.40 : x - Step 2: Convert to fraction form
940,982,023.20/1,411,473,034.80 = 865,735,226.40/x - Step 3: Cross multiply
940,982,023.20x = 1,411,473,034.80 × 865,735,226.40 - Step 4: Simplify right side
940,982,023.20x = 1,221,961,927,340,072,960 - Step 5: Solve for x
x = 1,221,961,927,340,072,960/940,982,023.20 - Step 6: Final answer
x = 1,298,602,839.60
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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.