Home / 301,314,721.60-452,031,064.80-128,791,201.60

Finding the Fourth Proportional to 301,314,721.60, 452,031,064.80 and 128,791,201.60

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Solution

The fourth proportional to 301,314,721.60, 452,031,064.80 and 128,791,201.60 is: 193,212,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,314,721.60 : 452,031,064.80 = 128,791,201.60 : x
  2. Step 2: Convert to fraction form
    301,314,721.60/452,031,064.80 = 128,791,201.60/x
  3. Step 3: Cross multiply
    301,314,721.60x = 452,031,064.80 × 128,791,201.60
  4. Step 4: Simplify right side
    301,314,721.60x = 58,217,623,996,119,464
  5. Step 5: Solve for x
    x = 58,217,623,996,119,464/301,314,721.60
  6. Step 6: Final answer
    x = 193,212,013.30

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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.