Home / 129,749,134.77-179,054,280.50-70,210,431.45

Finding the Fourth Proportional to 129,749,134.77, 179,054,280.50 and 70,210,431.45

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Solution

The fourth proportional to 129,749,134.77, 179,054,280.50 and 70,210,431.45 is: 96,890,652.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749,134.77 : 179,054,280.50 = 70,210,431.45 : x
  2. Step 2: Convert to fraction form
    129,749,134.77/179,054,280.50 = 70,210,431.45/x
  3. Step 3: Cross multiply
    129,749,134.77x = 179,054,280.50 × 70,210,431.45
  4. Step 4: Simplify right side
    129,749,134.77x = 12,571,478,286,523,270
  5. Step 5: Solve for x
    x = 12,571,478,286,523,270/129,749,134.77
  6. Step 6: Final answer
    x = 96,890,652.17

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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.