Home / 869,251,742.10-1,303,429,715.55-323,712,465.30

Finding the Fourth Proportional to 869,251,742.10, 1,303,429,715.55 and 323,712,465.30

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Solution

The fourth proportional to 869,251,742.10, 1,303,429,715.55 and 323,712,465.30 is: 485,401,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,251,742.10 : 1,303,429,715.55 = 323,712,465.30 : x
  2. Step 2: Convert to fraction form
    869,251,742.10/1,303,429,715.55 = 323,712,465.30/x
  3. Step 3: Cross multiply
    869,251,742.10x = 1,303,429,715.55 × 323,712,465.30
  4. Step 4: Simplify right side
    869,251,742.10x = 421,936,446,565,968,256
  5. Step 5: Solve for x
    x = 421,936,446,565,968,256/869,251,742.10
  6. Step 6: Final answer
    x = 485,401,899.28

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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.