Home / 143,056,355,860.74-197,408,875,952.90-78,823,485,632.66

Finding the Fourth Proportional to 143,056,355,860.74, 197,408,875,952.90 and 78,823,485,632.66

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Solution

The fourth proportional to 143,056,355,860.74, 197,408,875,952.90 and 78,823,485,632.66 is: 108,771,508,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,056,355,860.74 : 197,408,875,952.90 = 78,823,485,632.66 : x
  2. Step 2: Convert to fraction form
    143,056,355,860.74/197,408,875,952.90 = 78,823,485,632.66/x
  3. Step 3: Cross multiply
    143,056,355,860.74x = 197,408,875,952.90 × 78,823,485,632.66
  4. Step 4: Simplify right side
    143,056,355,860.74x = 15,560,455,697,432,974,458,880
  5. Step 5: Solve for x
    x = 15,560,455,697,432,974,458,880/143,056,355,860.74
  6. Step 6: Final answer
    x = 108,771,508,988.95

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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.