Home / 342,491,931.60-472,638,868.74-185,859,038.36

Finding the Fourth Proportional to 342,491,931.60, 472,638,868.74 and 185,859,038.36

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Solution

The fourth proportional to 342,491,931.60, 472,638,868.74 and 185,859,038.36 is: 256,485,474.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,491,931.60 : 472,638,868.74 = 185,859,038.36 : x
  2. Step 2: Convert to fraction form
    342,491,931.60/472,638,868.74 = 185,859,038.36/x
  3. Step 3: Cross multiply
    342,491,931.60x = 472,638,868.74 × 185,859,038.36
  4. Step 4: Simplify right side
    342,491,931.60x = 87,844,205,633,211,472
  5. Step 5: Solve for x
    x = 87,844,205,633,211,472/342,491,931.60
  6. Step 6: Final answer
    x = 256,485,474.63

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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.