Home / 429,751,137.60-643,670,112.60-372,355,509.60

Finding the Fourth Proportional to 429,751,137.60, 643,670,112.60 and 372,355,509.60

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Solution

The fourth proportional to 429,751,137.60, 643,670,112.60 and 372,355,509.60 is: 557,704,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,751,137.60 : 643,670,112.60 = 372,355,509.60 : x
  2. Step 2: Convert to fraction form
    429,751,137.60/643,670,112.60 = 372,355,509.60/x
  3. Step 3: Cross multiply
    429,751,137.60x = 643,670,112.60 × 372,355,509.60
  4. Step 4: Simplify right side
    429,751,137.60x = 239,674,112,791,462,400
  5. Step 5: Solve for x
    x = 239,674,112,791,462,400/429,751,137.60
  6. Step 6: Final answer
    x = 557,704,428.96

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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.