Home / 648,050,275.46-972,134,476.78-211,238,840.90

Finding the Fourth Proportional to 648,050,275.46, 972,134,476.78 and 211,238,840.90

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Solution

The fourth proportional to 648,050,275.46, 972,134,476.78 and 211,238,840.90 is: 316,877,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,050,275.46 : 972,134,476.78 = 211,238,840.90 : x
  2. Step 2: Convert to fraction form
    648,050,275.46/972,134,476.78 = 211,238,840.90/x
  3. Step 3: Cross multiply
    648,050,275.46x = 972,134,476.78 × 211,238,840.90
  4. Step 4: Simplify right side
    648,050,275.46x = 205,352,560,073,935,168
  5. Step 5: Solve for x
    x = 205,352,560,073,935,168/648,050,275.46
  6. Step 6: Final answer
    x = 316,877,513.75

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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.