Home / 142,168,748.40-213,276,742.20-55,909,969.20

Finding the Fourth Proportional to 142,168,748.40, 213,276,742.20 and 55,909,969.20

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Solution

The fourth proportional to 142,168,748.40, 213,276,742.20 and 55,909,969.20 is: 83,874,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,168,748.40 : 213,276,742.20 = 55,909,969.20 : x
  2. Step 2: Convert to fraction form
    142,168,748.40/213,276,742.20 = 55,909,969.20/x
  3. Step 3: Cross multiply
    142,168,748.40x = 213,276,742.20 × 55,909,969.20
  4. Step 4: Simplify right side
    142,168,748.40x = 11,924,296,087,478,340
  5. Step 5: Solve for x
    x = 11,924,296,087,478,340/142,168,748.40
  6. Step 6: Final answer
    x = 83,874,242.56

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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.