Home / 458,497,701.60-687,746,552.40-398,778,021.60

Finding the Fourth Proportional to 458,497,701.60, 687,746,552.40 and 398,778,021.60

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Solution

The fourth proportional to 458,497,701.60, 687,746,552.40 and 398,778,021.60 is: 598,167,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,497,701.60 : 687,746,552.40 = 398,778,021.60 : x
  2. Step 2: Convert to fraction form
    458,497,701.60/687,746,552.40 = 398,778,021.60/x
  3. Step 3: Cross multiply
    458,497,701.60x = 687,746,552.40 × 398,778,021.60
  4. Step 4: Simplify right side
    458,497,701.60x = 274,258,209,528,292,736
  5. Step 5: Solve for x
    x = 274,258,209,528,292,736/458,497,701.60
  6. Step 6: Final answer
    x = 598,167,032.40

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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.