Home / 83,984,145.40-125,957,312.70-30,131,457.40

Finding the Fourth Proportional to 83,984,145.40, 125,957,312.70 and 30,131,457.40

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Solution

The fourth proportional to 83,984,145.40, 125,957,312.70 and 30,131,457.40 is: 45,190,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,984,145.40 : 125,957,312.70 = 30,131,457.40 : x
  2. Step 2: Convert to fraction form
    83,984,145.40/125,957,312.70 = 30,131,457.40/x
  3. Step 3: Cross multiply
    83,984,145.40x = 125,957,312.70 × 30,131,457.40
  4. Step 4: Simplify right side
    83,984,145.40x = 3,795,277,401,838,529
  5. Step 5: Solve for x
    x = 3,795,277,401,838,529/83,984,145.40
  6. Step 6: Final answer
    x = 45,190,403.30

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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.