Home / 12,758,485.36-19,139,647.61-4,119,690.46

Finding the Fourth Proportional to 12,758,485.36, 19,139,647.61 and 4,119,690.46

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Solution

The fourth proportional to 12,758,485.36, 19,139,647.61 and 4,119,690.46 is: 6,180,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758,485.36 : 19,139,647.61 = 4,119,690.46 : x
  2. Step 2: Convert to fraction form
    12,758,485.36/19,139,647.61 = 4,119,690.46/x
  3. Step 3: Cross multiply
    12,758,485.36x = 19,139,647.61 × 4,119,690.46
  4. Step 4: Simplify right side
    12,758,485.36x = 78,849,423,666,678.80
  5. Step 5: Solve for x
    x = 78,849,423,666,678.80/12,758,485.36
  6. Step 6: Final answer
    x = 6,180,155.52

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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.