Home / 646,992,746.40-970,489,119.60-402,104,733.60

Finding the Fourth Proportional to 646,992,746.40, 970,489,119.60 and 402,104,733.60

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Solution

The fourth proportional to 646,992,746.40, 970,489,119.60 and 402,104,733.60 is: 603,157,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,992,746.40 : 970,489,119.60 = 402,104,733.60 : x
  2. Step 2: Convert to fraction form
    646,992,746.40/970,489,119.60 = 402,104,733.60/x
  3. Step 3: Cross multiply
    646,992,746.40x = 970,489,119.60 × 402,104,733.60
  4. Step 4: Simplify right side
    646,992,746.40x = 390,238,268,898,456,576
  5. Step 5: Solve for x
    x = 390,238,268,898,456,576/646,992,746.40
  6. Step 6: Final answer
    x = 603,157,100.40

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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.