Home / 401,278,568.70-553,766,386.26-225,075,980.91

Finding the Fourth Proportional to 401,278,568.70, 553,766,386.26 and 225,075,980.91

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Solution

The fourth proportional to 401,278,568.70, 553,766,386.26 and 225,075,980.91 is: 310,605,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,278,568.70 : 553,766,386.26 = 225,075,980.91 : x
  2. Step 2: Convert to fraction form
    401,278,568.70/553,766,386.26 = 225,075,980.91/x
  3. Step 3: Cross multiply
    401,278,568.70x = 553,766,386.26 × 225,075,980.91
  4. Step 4: Simplify right side
    401,278,568.70x = 124,639,512,582,455,440
  5. Step 5: Solve for x
    x = 124,639,512,582,455,440/401,278,568.70
  6. Step 6: Final answer
    x = 310,605,953.83

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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.