Home / 429,751,140.60-643,670,117.10-372,355,512.60

Finding the Fourth Proportional to 429,751,140.60, 643,670,117.10 and 372,355,512.60

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Solution

The fourth proportional to 429,751,140.60, 643,670,117.10 and 372,355,512.60 is: 557,704,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,751,140.60 : 643,670,117.10 = 372,355,512.60 : x
  2. Step 2: Convert to fraction form
    429,751,140.60/643,670,117.10 = 372,355,512.60/x
  3. Step 3: Cross multiply
    429,751,140.60x = 643,670,117.10 × 372,355,512.60
  4. Step 4: Simplify right side
    429,751,140.60x = 239,674,116,398,072,544
  5. Step 5: Solve for x
    x = 239,674,116,398,072,544/429,751,140.60
  6. Step 6: Final answer
    x = 557,704,433.46

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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.