Home / 646,706,630.10-970,059,945.15-186,659,807.70

Finding the Fourth Proportional to 646,706,630.10, 970,059,945.15 and 186,659,807.70

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Solution

The fourth proportional to 646,706,630.10, 970,059,945.15 and 186,659,807.70 is: 279,989,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,706,630.10 : 970,059,945.15 = 186,659,807.70 : x
  2. Step 2: Convert to fraction form
    646,706,630.10/970,059,945.15 = 186,659,807.70/x
  3. Step 3: Cross multiply
    646,706,630.10x = 970,059,945.15 × 186,659,807.70
  4. Step 4: Simplify right side
    646,706,630.10x = 181,071,202,819,171,520
  5. Step 5: Solve for x
    x = 181,071,202,819,171,520/646,706,630.10
  6. Step 6: Final answer
    x = 279,989,711.55

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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.