Home / 287,258,859.60-430,888,289.40-199,582,904.40

Finding the Fourth Proportional to 287,258,859.60, 430,888,289.40 and 199,582,904.40

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Solution

The fourth proportional to 287,258,859.60, 430,888,289.40 and 199,582,904.40 is: 299,374,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,258,859.60 : 430,888,289.40 = 199,582,904.40 : x
  2. Step 2: Convert to fraction form
    287,258,859.60/430,888,289.40 = 199,582,904.40/x
  3. Step 3: Cross multiply
    287,258,859.60x = 430,888,289.40 × 199,582,904.40
  4. Step 4: Simplify right side
    287,258,859.60x = 85,997,936,270,399,728
  5. Step 5: Solve for x
    x = 85,997,936,270,399,728/287,258,859.60
  6. Step 6: Final answer
    x = 299,374,356.60

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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.