Home / 79,868,136.02-120,012,866.12-43,007,278.91

Finding the Fourth Proportional to 79,868,136.02, 120,012,866.12 and 43,007,278.91

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Solution

The fourth proportional to 79,868,136.02, 120,012,866.12 and 43,007,278.91 is: 64,624,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,868,136.02 : 120,012,866.12 = 43,007,278.91 : x
  2. Step 2: Convert to fraction form
    79,868,136.02/120,012,866.12 = 43,007,278.91/x
  3. Step 3: Cross multiply
    79,868,136.02x = 120,012,866.12 × 43,007,278.91
  4. Step 4: Simplify right side
    79,868,136.02x = 5,161,426,806,193,856
  5. Step 5: Solve for x
    x = 5,161,426,806,193,856/79,868,136.02
  6. Step 6: Final answer
    x = 64,624,355.39

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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.