Home / 625,341,718.13-938,012,606.35-428,410,941.17

Finding the Fourth Proportional to 625,341,718.13, 938,012,606.35 and 428,410,941.17

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Solution

The fourth proportional to 625,341,718.13, 938,012,606.35 and 428,410,941.17 is: 642,616,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,341,718.13 : 938,012,606.35 = 428,410,941.17 : x
  2. Step 2: Convert to fraction form
    625,341,718.13/938,012,606.35 = 428,410,941.17/x
  3. Step 3: Cross multiply
    625,341,718.13x = 938,012,606.35 × 428,410,941.17
  4. Step 4: Simplify right side
    625,341,718.13x = 401,854,863,509,967,104
  5. Step 5: Solve for x
    x = 401,854,863,509,967,104/625,341,718.13
  6. Step 6: Final answer
    x = 642,616,431.72

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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.