Home / 257,347,457.16-355,143,086.46-139,872,752.16

Finding the Fourth Proportional to 257,347,457.16, 355,143,086.46 and 139,872,752.16

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Solution

The fourth proportional to 257,347,457.16, 355,143,086.46 and 139,872,752.16 is: 193,026,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,347,457.16 : 355,143,086.46 = 139,872,752.16 : x
  2. Step 2: Convert to fraction form
    257,347,457.16/355,143,086.46 = 139,872,752.16/x
  3. Step 3: Cross multiply
    257,347,457.16x = 355,143,086.46 × 139,872,752.16
  4. Step 4: Simplify right side
    257,347,457.16x = 49,674,840,913,757,024
  5. Step 5: Solve for x
    x = 49,674,840,913,757,024/257,347,457.16
  6. Step 6: Final answer
    x = 193,026,352.24

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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.