Home / 579,550,918.40-799,707,604.56-391,787,761.04

Finding the Fourth Proportional to 579,550,918.40, 799,707,604.56 and 391,787,761.04

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Solution

The fourth proportional to 579,550,918.40, 799,707,604.56 and 391,787,761.04 is: 540,617,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,550,918.40 : 799,707,604.56 = 391,787,761.04 : x
  2. Step 2: Convert to fraction form
    579,550,918.40/799,707,604.56 = 391,787,761.04/x
  3. Step 3: Cross multiply
    579,550,918.40x = 799,707,604.56 × 391,787,761.04
  4. Step 4: Simplify right side
    579,550,918.40x = 313,315,651,877,224,064
  5. Step 5: Solve for x
    x = 313,315,651,877,224,064/579,550,918.40
  6. Step 6: Final answer
    x = 540,617,988.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.