Home / 199,488,420.60-298,728,746.10-130,960,087.80

Finding the Fourth Proportional to 199,488,420.60, 298,728,746.10 and 130,960,087.80

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Solution

The fourth proportional to 199,488,420.60, 298,728,746.10 and 130,960,087.80 is: 196,109,341.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,488,420.60 : 298,728,746.10 = 130,960,087.80 : x
  2. Step 2: Convert to fraction form
    199,488,420.60/298,728,746.10 = 130,960,087.80/x
  3. Step 3: Cross multiply
    199,488,420.60x = 298,728,746.10 × 130,960,087.80
  4. Step 4: Simplify right side
    199,488,420.60x = 39,121,542,817,639,912
  5. Step 5: Solve for x
    x = 39,121,542,817,639,912/199,488,420.60
  6. Step 6: Final answer
    x = 196,109,341.58

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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.