Home / 257,347,455.16-355,143,083.70-139,872,750.16

Finding the Fourth Proportional to 257,347,455.16, 355,143,083.70 and 139,872,750.16

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Solution

The fourth proportional to 257,347,455.16, 355,143,083.70 and 139,872,750.16 is: 193,026,349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,347,455.16 : 355,143,083.70 = 139,872,750.16 : x
  2. Step 2: Convert to fraction form
    257,347,455.16/355,143,083.70 = 139,872,750.16/x
  3. Step 3: Cross multiply
    257,347,455.16x = 355,143,083.70 × 139,872,750.16
  4. Step 4: Simplify right side
    257,347,455.16x = 49,674,839,817,422,064
  5. Step 5: Solve for x
    x = 49,674,839,817,422,064/257,347,455.16
  6. Step 6: Final answer
    x = 193,026,349.48

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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.