Home / 1,216,639,140.48-1,824,229,915.12-387,234,524.16

Finding the Fourth Proportional to 1,216,639,140.48, 1,824,229,915.12 and 387,234,524.16

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Solution

The fourth proportional to 1,216,639,140.48, 1,824,229,915.12 and 387,234,524.16 is: 580,619,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,639,140.48 : 1,824,229,915.12 = 387,234,524.16 : x
  2. Step 2: Convert to fraction form
    1,216,639,140.48/1,824,229,915.12 = 387,234,524.16/x
  3. Step 3: Cross multiply
    1,216,639,140.48x = 1,824,229,915.12 × 387,234,524.16
  4. Step 4: Simplify right side
    1,216,639,140.48x = 706,404,803,139,930,368
  5. Step 5: Solve for x
    x = 706,404,803,139,930,368/1,216,639,140.48
  6. Step 6: Final answer
    x = 580,619,823.61

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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.