Home / 515,900,953.60-773,829,814.40-166,139,279.64

Finding the Fourth Proportional to 515,900,953.60, 773,829,814.40 and 166,139,279.64

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Solution

The fourth proportional to 515,900,953.60, 773,829,814.40 and 166,139,279.64 is: 249,201,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,900,953.60 : 773,829,814.40 = 166,139,279.64 : x
  2. Step 2: Convert to fraction form
    515,900,953.60/773,829,814.40 = 166,139,279.64/x
  3. Step 3: Cross multiply
    515,900,953.60x = 773,829,814.40 × 166,139,279.64
  4. Step 4: Simplify right side
    515,900,953.60x = 128,563,527,928,370,880
  5. Step 5: Solve for x
    x = 128,563,527,928,370,880/515,900,953.60
  6. Step 6: Final answer
    x = 249,201,958.30

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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.