Home / 71,919,353.52-99,258,417.24-40,563,838.80

Finding the Fourth Proportional to 71,919,353.52, 99,258,417.24 and 40,563,838.80

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Solution

The fourth proportional to 71,919,353.52, 99,258,417.24 and 40,563,838.80 is: 55,983,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919,353.52 : 99,258,417.24 = 40,563,838.80 : x
  2. Step 2: Convert to fraction form
    71,919,353.52/99,258,417.24 = 40,563,838.80/x
  3. Step 3: Cross multiply
    71,919,353.52x = 99,258,417.24 × 40,563,838.80
  4. Step 4: Simplify right side
    71,919,353.52x = 4,026,302,436,466,500.50
  5. Step 5: Solve for x
    x = 4,026,302,436,466,500.50/71,919,353.52
  6. Step 6: Final answer
    x = 55,983,573.81

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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.