Home / 389,619,627,870.40-537,484,020,736.76-338,105,885,891.66

Finding the Fourth Proportional to 389,619,627,870.40, 537,484,020,736.76 and 338,105,885,891.66

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Solution

The fourth proportional to 389,619,627,870.40, 537,484,020,736.76 and 338,105,885,891.66 is: 466,420,318,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619,627,870.40 : 537,484,020,736.76 = 338,105,885,891.66 : x
  2. Step 2: Convert to fraction form
    389,619,627,870.40/537,484,020,736.76 = 338,105,885,891.66/x
  3. Step 3: Cross multiply
    389,619,627,870.40x = 537,484,020,736.76 × 338,105,885,891.66
  4. Step 4: Simplify right side
    389,619,627,870.40x = 181,726,510,983,813,594,611,712
  5. Step 5: Solve for x
    x = 181,726,510,983,813,594,611,712/389,619,627,870.40
  6. Step 6: Final answer
    x = 466,420,318,650.53

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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.