Home / 389,619,627,871.40-537,484,020,738.14-338,105,885,892.66

Finding the Fourth Proportional to 389,619,627,871.40, 537,484,020,738.14 and 338,105,885,892.66

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Solution

The fourth proportional to 389,619,627,871.40, 537,484,020,738.14 and 338,105,885,892.66 is: 466,420,318,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619,627,871.40 : 537,484,020,738.14 = 338,105,885,892.66 : x
  2. Step 2: Convert to fraction form
    389,619,627,871.40/537,484,020,738.14 = 338,105,885,892.66/x
  3. Step 3: Cross multiply
    389,619,627,871.40x = 537,484,020,738.14 × 338,105,885,892.66
  4. Step 4: Simplify right side
    389,619,627,871.40x = 181,726,510,984,817,643,880,448
  5. Step 5: Solve for x
    x = 181,726,510,984,817,643,880,448/389,619,627,871.40
  6. Step 6: Final answer
    x = 466,420,318,651.91

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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.