Home / 64,761,271.21-89,381,610.71-38,657,135.53

Finding the Fourth Proportional to 64,761,271.21, 89,381,610.71 and 38,657,135.53

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Solution

The fourth proportional to 64,761,271.21, 89,381,610.71 and 38,657,135.53 is: 53,353,446.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761,271.21 : 89,381,610.71 = 38,657,135.53 : x
  2. Step 2: Convert to fraction form
    64,761,271.21/89,381,610.71 = 38,657,135.53/x
  3. Step 3: Cross multiply
    64,761,271.21x = 89,381,610.71 × 38,657,135.53
  4. Step 4: Simplify right side
    64,761,271.21x = 3,455,237,039,106,169.50
  5. Step 5: Solve for x
    x = 3,455,237,039,106,169.50/64,761,271.21
  6. Step 6: Final answer
    x = 53,353,446.81

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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.