Home / 429,751,138.60-643,670,114.10-372,355,510.60

Finding the Fourth Proportional to 429,751,138.60, 643,670,114.10 and 372,355,510.60

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Solution

The fourth proportional to 429,751,138.60, 643,670,114.10 and 372,355,510.60 is: 557,704,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,751,138.60 : 643,670,114.10 = 372,355,510.60 : x
  2. Step 2: Convert to fraction form
    429,751,138.60/643,670,114.10 = 372,355,510.60/x
  3. Step 3: Cross multiply
    429,751,138.60x = 643,670,114.10 × 372,355,510.60
  4. Step 4: Simplify right side
    429,751,138.60x = 239,674,113,993,665,792
  5. Step 5: Solve for x
    x = 239,674,113,993,665,792/429,751,138.60
  6. Step 6: Final answer
    x = 557,704,430.46

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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.