Home / 561,922,343.40-842,883,515.10-553,312,999.20

Finding the Fourth Proportional to 561,922,343.40, 842,883,515.10 and 553,312,999.20

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Solution

The fourth proportional to 561,922,343.40, 842,883,515.10 and 553,312,999.20 is: 829,969,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,922,343.40 : 842,883,515.10 = 553,312,999.20 : x
  2. Step 2: Convert to fraction form
    561,922,343.40/842,883,515.10 = 553,312,999.20/x
  3. Step 3: Cross multiply
    561,922,343.40x = 842,883,515.10 × 553,312,999.20
  4. Step 4: Simplify right side
    561,922,343.40x = 466,378,405,716,219,520
  5. Step 5: Solve for x
    x = 466,378,405,716,219,520/561,922,343.40
  6. Step 6: Final answer
    x = 829,969,498.80

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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.