Home / 90,847,312.42-125,369,800.52-51,689,088.35

Finding the Fourth Proportional to 90,847,312.42, 125,369,800.52 and 51,689,088.35

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Solution

The fourth proportional to 90,847,312.42, 125,369,800.52 and 51,689,088.35 is: 71,331,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847,312.42 : 125,369,800.52 = 51,689,088.35 : x
  2. Step 2: Convert to fraction form
    90,847,312.42/125,369,800.52 = 51,689,088.35/x
  3. Step 3: Cross multiply
    90,847,312.42x = 125,369,800.52 × 51,689,088.35
  4. Step 4: Simplify right side
    90,847,312.42x = 6,480,250,695,500,156
  5. Step 5: Solve for x
    x = 6,480,250,695,500,156/90,847,312.42
  6. Step 6: Final answer
    x = 71,331,231.74

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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.