Home / 280,187,800.08-420,540,045.24-142,110,301.20

Finding the Fourth Proportional to 280,187,800.08, 420,540,045.24 and 142,110,301.20

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Solution

The fourth proportional to 280,187,800.08, 420,540,045.24 and 142,110,301.20 is: 213,296,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,187,800.08 : 420,540,045.24 = 142,110,301.20 : x
  2. Step 2: Convert to fraction form
    280,187,800.08/420,540,045.24 = 142,110,301.20/x
  3. Step 3: Cross multiply
    280,187,800.08x = 420,540,045.24 × 142,110,301.20
  4. Step 4: Simplify right side
    280,187,800.08x = 59,763,072,495,718,024
  5. Step 5: Solve for x
    x = 59,763,072,495,718,024/280,187,800.08
  6. Step 6: Final answer
    x = 213,296,483.57

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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.