Home / 470,745,280.80-706,117,921.20-147,628,634.40

Finding the Fourth Proportional to 470,745,280.80, 706,117,921.20 and 147,628,634.40

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Solution

The fourth proportional to 470,745,280.80, 706,117,921.20 and 147,628,634.40 is: 221,442,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,745,280.80 : 706,117,921.20 = 147,628,634.40 : x
  2. Step 2: Convert to fraction form
    470,745,280.80/706,117,921.20 = 147,628,634.40/x
  3. Step 3: Cross multiply
    470,745,280.80x = 706,117,921.20 × 147,628,634.40
  4. Step 4: Simplify right side
    470,745,280.80x = 104,243,224,432,122,816
  5. Step 5: Solve for x
    x = 104,243,224,432,122,816/470,745,280.80
  6. Step 6: Final answer
    x = 221,442,951.60

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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.