Home / 579,525,311.80-799,672,342.34-391,762,140.96

Finding the Fourth Proportional to 579,525,311.80, 799,672,342.34 and 391,762,140.96

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Solution

The fourth proportional to 579,525,311.80, 799,672,342.34 and 391,762,140.96 is: 540,582,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,525,311.80 : 799,672,342.34 = 391,762,140.96 : x
  2. Step 2: Convert to fraction form
    579,525,311.80/799,672,342.34 = 391,762,140.96/x
  3. Step 3: Cross multiply
    579,525,311.80x = 799,672,342.34 × 391,762,140.96
  4. Step 4: Simplify right side
    579,525,311.80x = 313,281,348,901,616,448
  5. Step 5: Solve for x
    x = 313,281,348,901,616,448/579,525,311.80
  6. Step 6: Final answer
    x = 540,582,684.70

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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.