Finding the Fourth Proportional to 1,612,402,831.20, 2,418,604,246.80 and 1,289,916,559.20
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Solution
The fourth proportional to 1,612,402,831.20, 2,418,604,246.80 and 1,289,916,559.20 is: 1,934,874,838.80
Step by Step Solution
- Step 1: Write the proportion equation
1,612,402,831.20 : 2,418,604,246.80 = 1,289,916,559.20 : x - Step 2: Convert to fraction form
1,612,402,831.20/2,418,604,246.80 = 1,289,916,559.20/x - Step 3: Cross multiply
1,612,402,831.20x = 2,418,604,246.80 × 1,289,916,559.20 - Step 4: Simplify right side
1,612,402,831.20x = 3,119,797,668,098,763,776 - Step 5: Solve for x
x = 3,119,797,668,098,763,776/1,612,402,831.20 - Step 6: Final answer
x = 1,934,874,838.80
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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.