Home / 489,906,559.20-734,859,838.80-403,742,258.40

Finding the Fourth Proportional to 489,906,559.20, 734,859,838.80 and 403,742,258.40

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Solution

The fourth proportional to 489,906,559.20, 734,859,838.80 and 403,742,258.40 is: 605,613,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,906,559.20 : 734,859,838.80 = 403,742,258.40 : x
  2. Step 2: Convert to fraction form
    489,906,559.20/734,859,838.80 = 403,742,258.40/x
  3. Step 3: Cross multiply
    489,906,559.20x = 734,859,838.80 × 403,742,258.40
  4. Step 4: Simplify right side
    489,906,559.20x = 296,693,970,924,571,904
  5. Step 5: Solve for x
    x = 296,693,970,924,571,904/489,906,559.20
  6. Step 6: Final answer
    x = 605,613,387.60

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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.