Home / 913,311,357.60-1,260,369,682.52-495,623,642.90

Finding the Fourth Proportional to 913,311,357.60, 1,260,369,682.52 and 495,623,642.90

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Solution

The fourth proportional to 913,311,357.60, 1,260,369,682.52 and 495,623,642.90 is: 683,960,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,311,357.60 : 1,260,369,682.52 = 495,623,642.90 : x
  2. Step 2: Convert to fraction form
    913,311,357.60/1,260,369,682.52 = 495,623,642.90/x
  3. Step 3: Cross multiply
    913,311,357.60x = 1,260,369,682.52 × 495,623,642.90
  4. Step 4: Simplify right side
    913,311,357.60x = 624,669,013,451,278,848
  5. Step 5: Solve for x
    x = 624,669,013,451,278,848/913,311,357.60
  6. Step 6: Final answer
    x = 683,960,632.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.