Home / 478,829,897.20-718,244,845.80-260,395,836.40

Finding the Fourth Proportional to 478,829,897.20, 718,244,845.80 and 260,395,836.40

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Solution

The fourth proportional to 478,829,897.20, 718,244,845.80 and 260,395,836.40 is: 390,593,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,829,897.20 : 718,244,845.80 = 260,395,836.40 : x
  2. Step 2: Convert to fraction form
    478,829,897.20/718,244,845.80 = 260,395,836.40/x
  3. Step 3: Cross multiply
    478,829,897.20x = 718,244,845.80 × 260,395,836.40
  4. Step 4: Simplify right side
    478,829,897.20x = 187,027,967,362,080,032
  5. Step 5: Solve for x
    x = 187,027,967,362,080,032/478,829,897.20
  6. Step 6: Final answer
    x = 390,593,754.60

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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.