Home / 837,538,145.40-1,256,307,218.10-470,206,126.20

Finding the Fourth Proportional to 837,538,145.40, 1,256,307,218.10 and 470,206,126.20

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Solution

The fourth proportional to 837,538,145.40, 1,256,307,218.10 and 470,206,126.20 is: 705,309,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,538,145.40 : 1,256,307,218.10 = 470,206,126.20 : x
  2. Step 2: Convert to fraction form
    837,538,145.40/1,256,307,218.10 = 470,206,126.20/x
  3. Step 3: Cross multiply
    837,538,145.40x = 1,256,307,218.10 × 470,206,126.20
  4. Step 4: Simplify right side
    837,538,145.40x = 590,723,350,339,899,520
  5. Step 5: Solve for x
    x = 590,723,350,339,899,520/837,538,145.40
  6. Step 6: Final answer
    x = 705,309,189.30

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1.5x scale

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.