Home / 12,041,509.78-16,612,993.65-7,142,979.70

Finding the Fourth Proportional to 12,041,509.78, 16,612,993.65 and 7,142,979.70

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Solution

The fourth proportional to 12,041,509.78, 16,612,993.65 and 7,142,979.70 is: 9,854,767.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041,509.78 : 16,612,993.65 = 7,142,979.70 : x
  2. Step 2: Convert to fraction form
    12,041,509.78/16,612,993.65 = 7,142,979.70/x
  3. Step 3: Cross multiply
    12,041,509.78x = 16,612,993.65 × 7,142,979.70
  4. Step 4: Simplify right side
    12,041,509.78x = 118,666,276,398,178.91
  5. Step 5: Solve for x
    x = 118,666,276,398,178.91/12,041,509.78
  6. Step 6: Final answer
    x = 9,854,767.26

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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.