Home / 839,808,000.30-1,259,712,000.45-430,905,485.10

Finding the Fourth Proportional to 839,808,000.30, 1,259,712,000.45 and 430,905,485.10

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Solution

The fourth proportional to 839,808,000.30, 1,259,712,000.45 and 430,905,485.10 is: 646,358,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,000.30 : 1,259,712,000.45 = 430,905,485.10 : x
  2. Step 2: Convert to fraction form
    839,808,000.30/1,259,712,000.45 = 430,905,485.10/x
  3. Step 3: Cross multiply
    839,808,000.30x = 1,259,712,000.45 × 430,905,485.10
  4. Step 4: Simplify right side
    839,808,000.30x = 542,816,810,640,198,720
  5. Step 5: Solve for x
    x = 542,816,810,640,198,720/839,808,000.30
  6. Step 6: Final answer
    x = 646,358,227.65

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1.5x scale

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.