Home / 257,345,778.59-355,140,771.05-139,871,073.59

Finding the Fourth Proportional to 257,345,778.59, 355,140,771.05 and 139,871,073.59

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Solution

The fourth proportional to 257,345,778.59, 355,140,771.05 and 139,871,073.59 is: 193,024,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,345,778.59 : 355,140,771.05 = 139,871,073.59 : x
  2. Step 2: Convert to fraction form
    257,345,778.59/355,140,771.05 = 139,871,073.59/x
  3. Step 3: Cross multiply
    257,345,778.59x = 355,140,771.05 × 139,871,073.59
  4. Step 4: Simplify right side
    257,345,778.59x = 49,673,920,922,249,648
  5. Step 5: Solve for x
    x = 49,673,920,922,249,648/257,345,778.59
  6. Step 6: Final answer
    x = 193,024,036.36

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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.