Home / 260,818,256.80-391,227,385.20-139,885,904.80

Finding the Fourth Proportional to 260,818,256.80, 391,227,385.20 and 139,885,904.80

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Solution

The fourth proportional to 260,818,256.80, 391,227,385.20 and 139,885,904.80 is: 209,828,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,818,256.80 : 391,227,385.20 = 139,885,904.80 : x
  2. Step 2: Convert to fraction form
    260,818,256.80/391,227,385.20 = 139,885,904.80/x
  3. Step 3: Cross multiply
    260,818,256.80x = 391,227,385.20 × 139,885,904.80
  4. Step 4: Simplify right side
    260,818,256.80x = 54,727,196,761,240,128
  5. Step 5: Solve for x
    x = 54,727,196,761,240,128/260,818,256.80
  6. Step 6: Final answer
    x = 209,828,857.20

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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.