Home / 509,341,332.20-764,011,998.30-164,306,215.40

Finding the Fourth Proportional to 509,341,332.20, 764,011,998.30 and 164,306,215.40

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Solution

The fourth proportional to 509,341,332.20, 764,011,998.30 and 164,306,215.40 is: 246,459,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,341,332.20 : 764,011,998.30 = 164,306,215.40 : x
  2. Step 2: Convert to fraction form
    509,341,332.20/764,011,998.30 = 164,306,215.40/x
  3. Step 3: Cross multiply
    509,341,332.20x = 764,011,998.30 × 164,306,215.40
  4. Step 4: Simplify right side
    509,341,332.20x = 125,531,919,960,864,224
  5. Step 5: Solve for x
    x = 125,531,919,960,864,224/509,341,332.20
  6. Step 6: Final answer
    x = 246,459,323.10

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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.