Home / 213,408,660.76-294,413,771.77-142,866,998.40

Finding the Fourth Proportional to 213,408,660.76, 294,413,771.77 and 142,866,998.40

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Solution

The fourth proportional to 213,408,660.76, 294,413,771.77 and 142,866,998.40 is: 197,096,086.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,408,660.76 : 294,413,771.77 = 142,866,998.40 : x
  2. Step 2: Convert to fraction form
    213,408,660.76/294,413,771.77 = 142,866,998.40/x
  3. Step 3: Cross multiply
    213,408,660.76x = 294,413,771.77 × 142,866,998.40
  4. Step 4: Simplify right side
    213,408,660.76x = 42,062,011,860,402,552
  5. Step 5: Solve for x
    x = 42,062,011,860,402,552/213,408,660.76
  6. Step 6: Final answer
    x = 197,096,086.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.