Home / 646,787,434.60-970,223,142.30-340,677,418.60

Finding the Fourth Proportional to 646,787,434.60, 970,223,142.30 and 340,677,418.60

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Solution

The fourth proportional to 646,787,434.60, 970,223,142.30 and 340,677,418.60 is: 511,038,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,787,434.60 : 970,223,142.30 = 340,677,418.60 : x
  2. Step 2: Convert to fraction form
    646,787,434.60/970,223,142.30 = 340,677,418.60/x
  3. Step 3: Cross multiply
    646,787,434.60x = 970,223,142.30 × 340,677,418.60
  4. Step 4: Simplify right side
    646,787,434.60x = 330,533,115,584,744,448
  5. Step 5: Solve for x
    x = 330,533,115,584,744,448/646,787,434.60
  6. Step 6: Final answer
    x = 511,038,245.18

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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.