Home / 213,205,657.17-319,808,485.86-76,891,040.67

Finding the Fourth Proportional to 213,205,657.17, 319,808,485.86 and 76,891,040.67

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Solution

The fourth proportional to 213,205,657.17, 319,808,485.86 and 76,891,040.67 is: 115,336,561.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,205,657.17 : 319,808,485.86 = 76,891,040.67 : x
  2. Step 2: Convert to fraction form
    213,205,657.17/319,808,485.86 = 76,891,040.67/x
  3. Step 3: Cross multiply
    213,205,657.17x = 319,808,485.86 × 76,891,040.67
  4. Step 4: Simplify right side
    213,205,657.17x = 24,590,407,292,872,380
  5. Step 5: Solve for x
    x = 24,590,407,292,872,380/213,205,657.17
  6. Step 6: Final answer
    x = 115,336,561.04

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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.