Home / 90,587,279.07-125,013,984.12-51,432,698.79

Finding the Fourth Proportional to 90,587,279.07, 125,013,984.12 and 51,432,698.79

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Solution

The fourth proportional to 90,587,279.07, 125,013,984.12 and 51,432,698.79 is: 70,979,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,587,279.07 : 125,013,984.12 = 51,432,698.79 : x
  2. Step 2: Convert to fraction form
    90,587,279.07/125,013,984.12 = 51,432,698.79/x
  3. Step 3: Cross multiply
    90,587,279.07x = 125,013,984.12 × 51,432,698.79
  4. Step 4: Simplify right side
    90,587,279.07x = 6,429,806,589,781,803
  5. Step 5: Solve for x
    x = 6,429,806,589,781,803/90,587,279.07
  6. Step 6: Final answer
    x = 70,979,133.67

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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.