Home / 71,877,142.40-107,742,230.40-35,429,475.20

Finding the Fourth Proportional to 71,877,142.40, 107,742,230.40 and 35,429,475.20

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Solution

The fourth proportional to 71,877,142.40, 107,742,230.40 and 35,429,475.20 is: 53,107,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,877,142.40 : 107,742,230.40 = 35,429,475.20 : x
  2. Step 2: Convert to fraction form
    71,877,142.40/107,742,230.40 = 35,429,475.20/x
  3. Step 3: Cross multiply
    71,877,142.40x = 107,742,230.40 × 35,429,475.20
  4. Step 4: Simplify right side
    71,877,142.40x = 3,817,250,679,949,486.50
  5. Step 5: Solve for x
    x = 3,817,250,679,949,486.50/71,877,142.40
  6. Step 6: Final answer
    x = 53,107,991.67

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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.