Home / 90,847,109.52-125,369,521.20-51,688,885.32

Finding the Fourth Proportional to 90,847,109.52, 125,369,521.20 and 51,688,885.32

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Solution

The fourth proportional to 90,847,109.52, 125,369,521.20 and 51,688,885.32 is: 71,330,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847,109.52 : 125,369,521.20 = 51,688,885.32 : x
  2. Step 2: Convert to fraction form
    90,847,109.52/125,369,521.20 = 51,688,885.32/x
  3. Step 3: Cross multiply
    90,847,109.52x = 125,369,521.20 × 51,688,885.32
  4. Step 4: Simplify right side
    90,847,109.52x = 6,480,210,803,930,109
  5. Step 5: Solve for x
    x = 6,480,210,803,930,109/90,847,109.52
  6. Step 6: Final answer
    x = 71,330,951.95

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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.