Home / 944,785,128.40-1,417,177,692.60-485,620,104.40

Finding the Fourth Proportional to 944,785,128.40, 1,417,177,692.60 and 485,620,104.40

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Solution

The fourth proportional to 944,785,128.40, 1,417,177,692.60 and 485,620,104.40 is: 728,430,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    944,785,128.40 : 1,417,177,692.60 = 485,620,104.40 : x
  2. Step 2: Convert to fraction form
    944,785,128.40/1,417,177,692.60 = 485,620,104.40/x
  3. Step 3: Cross multiply
    944,785,128.40x = 1,417,177,692.60 × 485,620,104.40
  4. Step 4: Simplify right side
    944,785,128.40x = 688,209,979,033,763,072
  5. Step 5: Solve for x
    x = 688,209,979,033,763,072/944,785,128.40
  6. Step 6: Final answer
    x = 728,430,156.60

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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.