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Finding the Fourth Proportional to 302,465,293.80, 453,697,940.70 and 140,923,559.40

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Solution

The fourth proportional to 302,465,293.80, 453,697,940.70 and 140,923,559.40 is: 211,385,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,465,293.80 : 453,697,940.70 = 140,923,559.40 : x
  2. Step 2: Convert to fraction form
    302,465,293.80/453,697,940.70 = 140,923,559.40/x
  3. Step 3: Cross multiply
    302,465,293.80x = 453,697,940.70 × 140,923,559.40
  4. Step 4: Simplify right side
    302,465,293.80x = 63,936,728,695,894,128
  5. Step 5: Solve for x
    x = 63,936,728,695,894,128/302,465,293.80
  6. Step 6: Final answer
    x = 211,385,339.10

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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.