Home / 257,500,830.21-355,360,490.51-147,513,800.85

Finding the Fourth Proportional to 257,500,830.21, 355,360,490.51 and 147,513,800.85

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Solution

The fourth proportional to 257,500,830.21, 355,360,490.51 and 147,513,800.85 is: 203,574,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,500,830.21 : 355,360,490.51 = 147,513,800.85 : x
  2. Step 2: Convert to fraction form
    257,500,830.21/355,360,490.51 = 147,513,800.85/x
  3. Step 3: Cross multiply
    257,500,830.21x = 355,360,490.51 × 147,513,800.85
  4. Step 4: Simplify right side
    257,500,830.21x = 52,420,576,627,050,448
  5. Step 5: Solve for x
    x = 52,420,576,627,050,448/257,500,830.21
  6. Step 6: Final answer
    x = 203,574,398.51

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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.