Home / 209,113,669.20-313,670,503.80-72,753,733.20

Finding the Fourth Proportional to 209,113,669.20, 313,670,503.80 and 72,753,733.20

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Solution

The fourth proportional to 209,113,669.20, 313,670,503.80 and 72,753,733.20 is: 109,130,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113,669.20 : 313,670,503.80 = 72,753,733.20 : x
  2. Step 2: Convert to fraction form
    209,113,669.20/313,670,503.80 = 72,753,733.20/x
  3. Step 3: Cross multiply
    209,113,669.20x = 313,670,503.80 × 72,753,733.20
  4. Step 4: Simplify right side
    209,113,669.20x = 22,820,700,146,174,788
  5. Step 5: Solve for x
    x = 22,820,700,146,174,788/209,113,669.20
  6. Step 6: Final answer
    x = 109,130,599.80

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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.