Home / 626,472,792.76-939,124,998.14-211,659,518.66

Finding the Fourth Proportional to 626,472,792.76, 939,124,998.14 and 211,659,518.66

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Solution

The fourth proportional to 626,472,792.76, 939,124,998.14 and 211,659,518.66 is: 317,291,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,472,792.76 : 939,124,998.14 = 211,659,518.66 : x
  2. Step 2: Convert to fraction form
    626,472,792.76/939,124,998.14 = 211,659,518.66/x
  3. Step 3: Cross multiply
    626,472,792.76x = 939,124,998.14 × 211,659,518.66
  4. Step 4: Simplify right side
    626,472,792.76x = 198,774,745,068,572,352
  5. Step 5: Solve for x
    x = 198,774,745,068,572,352/626,472,792.76
  6. Step 6: Final answer
    x = 317,291,903.76

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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.