Home / 401,278,568.46-553,766,385.93-225,075,980.67

Finding the Fourth Proportional to 401,278,568.46, 553,766,385.93 and 225,075,980.67

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Solution

The fourth proportional to 401,278,568.46, 553,766,385.93 and 225,075,980.67 is: 310,605,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278,568.46 : 553,766,385.93 = 225,075,980.67 : x
  2. Step 2: Convert to fraction form
    401,278,568.46/553,766,385.93 = 225,075,980.67/x
  3. Step 3: Cross multiply
    401,278,568.46x = 553,766,385.93 × 225,075,980.67
  4. Step 4: Simplify right side
    401,278,568.46x = 124,639,512,375,276,416
  5. Step 5: Solve for x
    x = 124,639,512,375,276,416/401,278,568.46
  6. Step 6: Final answer
    x = 310,605,953.50

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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.