Home / 384,931,932.80-531,216,512.40-217,693,202.76

Finding the Fourth Proportional to 384,931,932.80, 531,216,512.40 and 217,693,202.76

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Solution

The fourth proportional to 384,931,932.80, 531,216,512.40 and 217,693,202.76 is: 300,422,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,931,932.80 : 531,216,512.40 = 217,693,202.76 : x
  2. Step 2: Convert to fraction form
    384,931,932.80/531,216,512.40 = 217,693,202.76/x
  3. Step 3: Cross multiply
    384,931,932.80x = 531,216,512.40 × 217,693,202.76
  4. Step 4: Simplify right side
    384,931,932.80x = 115,642,223,943,353,248
  5. Step 5: Solve for x
    x = 115,642,223,943,353,248/384,931,932.80
  6. Step 6: Final answer
    x = 300,422,526.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.