Home / 65,769,389.51-90,761,951.72-36,402,761.75

Finding the Fourth Proportional to 65,769,389.51, 90,761,951.72 and 36,402,761.75

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Solution

The fourth proportional to 65,769,389.51, 90,761,951.72 and 36,402,761.75 is: 50,235,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,769,389.51 : 90,761,951.72 = 36,402,761.75 : x
  2. Step 2: Convert to fraction form
    65,769,389.51/90,761,951.72 = 36,402,761.75/x
  3. Step 3: Cross multiply
    65,769,389.51x = 90,761,951.72 × 36,402,761.75
  4. Step 4: Simplify right side
    65,769,389.51x = 3,303,985,704,065,359.50
  5. Step 5: Solve for x
    x = 3,303,985,704,065,359.50/65,769,389.51
  6. Step 6: Final answer
    x = 50,235,918.70

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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.