Home / 65,243,916.20-90,036,929.52-35,877,142.64

Finding the Fourth Proportional to 65,243,916.20, 90,036,929.52 and 35,877,142.64

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Solution

The fourth proportional to 65,243,916.20, 90,036,929.52 and 35,877,142.64 is: 49,510,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243,916.20 : 90,036,929.52 = 35,877,142.64 : x
  2. Step 2: Convert to fraction form
    65,243,916.20/90,036,929.52 = 35,877,142.64/x
  3. Step 3: Cross multiply
    65,243,916.20x = 90,036,929.52 × 35,877,142.64
  4. Step 4: Simplify right side
    65,243,916.20x = 3,230,267,763,256,666.50
  5. Step 5: Solve for x
    x = 3,230,267,763,256,666.50/65,243,916.20
  6. Step 6: Final answer
    x = 49,510,635.65

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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.