Home / 354,620,669.40-531,931,004.10-191,361,994.20

Finding the Fourth Proportional to 354,620,669.40, 531,931,004.10 and 191,361,994.20

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Solution

The fourth proportional to 354,620,669.40, 531,931,004.10 and 191,361,994.20 is: 287,042,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,620,669.40 : 531,931,004.10 = 191,361,994.20 : x
  2. Step 2: Convert to fraction form
    354,620,669.40/531,931,004.10 = 191,361,994.20/x
  3. Step 3: Cross multiply
    354,620,669.40x = 531,931,004.10 × 191,361,994.20
  4. Step 4: Simplify right side
    354,620,669.40x = 101,791,377,721,384,368
  5. Step 5: Solve for x
    x = 101,791,377,721,384,368/354,620,669.40
  6. Step 6: Final answer
    x = 287,042,991.30

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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.