Home / 210,788,289.75-316,253,058.33-72,709,206.66

Finding the Fourth Proportional to 210,788,289.75, 316,253,058.33 and 72,709,206.66

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Solution

The fourth proportional to 210,788,289.75, 316,253,058.33 and 72,709,206.66 is: 109,088,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,788,289.75 : 316,253,058.33 = 72,709,206.66 : x
  2. Step 2: Convert to fraction form
    210,788,289.75/316,253,058.33 = 72,709,206.66/x
  3. Step 3: Cross multiply
    210,788,289.75x = 316,253,058.33 × 72,709,206.66
  4. Step 4: Simplify right side
    210,788,289.75x = 22,994,508,974,973,004
  5. Step 5: Solve for x
    x = 22,994,508,974,973,004/210,788,289.75
  6. Step 6: Final answer
    x = 109,088,170.90

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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.