Home / 288,025,981.40-431,864,016.80-112,939,258.52

Finding the Fourth Proportional to 288,025,981.40, 431,864,016.80 and 112,939,258.52

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Solution

The fourth proportional to 288,025,981.40, 431,864,016.80 and 112,939,258.52 is: 169,340,285.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,025,981.40 : 431,864,016.80 = 112,939,258.52 : x
  2. Step 2: Convert to fraction form
    288,025,981.40/431,864,016.80 = 112,939,258.52/x
  3. Step 3: Cross multiply
    288,025,981.40x = 431,864,016.80 × 112,939,258.52
  4. Step 4: Simplify right side
    288,025,981.40x = 48,774,401,838,860,824
  5. Step 5: Solve for x
    x = 48,774,401,838,860,824/288,025,981.40
  6. Step 6: Final answer
    x = 169,340,285.21

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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.