Home / 619,894,996.20-929,956,918.16-256,417,695.72

Finding the Fourth Proportional to 619,894,996.20, 929,956,918.16 and 256,417,695.72

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Solution

The fourth proportional to 619,894,996.20, 929,956,918.16 and 256,417,695.72 is: 384,673,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,894,996.20 : 929,956,918.16 = 256,417,695.72 : x
  2. Step 2: Convert to fraction form
    619,894,996.20/929,956,918.16 = 256,417,695.72/x
  3. Step 3: Cross multiply
    619,894,996.20x = 929,956,918.16 × 256,417,695.72
  4. Step 4: Simplify right side
    619,894,996.20x = 238,457,410,073,459,808
  5. Step 5: Solve for x
    x = 238,457,410,073,459,808/619,894,996.20
  6. Step 6: Final answer
    x = 384,673,874.66

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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.