Home / 837,538,142.40-1,256,307,213.60-470,206,123.20

Finding the Fourth Proportional to 837,538,142.40, 1,256,307,213.60 and 470,206,123.20

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Solution

The fourth proportional to 837,538,142.40, 1,256,307,213.60 and 470,206,123.20 is: 705,309,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,538,142.40 : 1,256,307,213.60 = 470,206,123.20 : x
  2. Step 2: Convert to fraction form
    837,538,142.40/1,256,307,213.60 = 470,206,123.20/x
  3. Step 3: Cross multiply
    837,538,142.40x = 1,256,307,213.60 × 470,206,123.20
  4. Step 4: Simplify right side
    837,538,142.40x = 590,723,344,455,050,240
  5. Step 5: Solve for x
    x = 590,723,344,455,050,240/837,538,142.40
  6. Step 6: Final answer
    x = 705,309,184.80

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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.