Home / 868,838,906.60-1,303,258,359.90-402,499,429.10

Finding the Fourth Proportional to 868,838,906.60, 1,303,258,359.90 and 402,499,429.10

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Solution

The fourth proportional to 868,838,906.60, 1,303,258,359.90 and 402,499,429.10 is: 603,749,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,838,906.60 : 1,303,258,359.90 = 402,499,429.10 : x
  2. Step 2: Convert to fraction form
    868,838,906.60/1,303,258,359.90 = 402,499,429.10/x
  3. Step 3: Cross multiply
    868,838,906.60x = 1,303,258,359.90 × 402,499,429.10
  4. Step 4: Simplify right side
    868,838,906.60x = 524,560,745,829,552,384
  5. Step 5: Solve for x
    x = 524,560,745,829,552,384/868,838,906.60
  6. Step 6: Final answer
    x = 603,749,143.65

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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.