Home / 76,129,756.40-114,199,037.16-21,537,768.80

Finding the Fourth Proportional to 76,129,756.40, 114,199,037.16 and 21,537,768.80

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Solution

The fourth proportional to 76,129,756.40, 114,199,037.16 and 21,537,768.80 is: 32,307,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,129,756.40 : 114,199,037.16 = 21,537,768.80 : x
  2. Step 2: Convert to fraction form
    76,129,756.40/114,199,037.16 = 21,537,768.80/x
  3. Step 3: Cross multiply
    76,129,756.40x = 114,199,037.16 × 21,537,768.80
  4. Step 4: Simplify right side
    76,129,756.40x = 2,459,592,459,534,688.50
  5. Step 5: Solve for x
    x = 2,459,592,459,534,688.50/76,129,756.40
  6. Step 6: Final answer
    x = 32,307,898.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.