Home / 5,429,032.34-8,143,541.61-1,385,520.23

Finding the Fourth Proportional to 5,429,032.34, 8,143,541.61 and 1,385,520.23

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Solution

The fourth proportional to 5,429,032.34, 8,143,541.61 and 1,385,520.23 is: 2,078,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,032.34 : 8,143,541.61 = 1,385,520.23 : x
  2. Step 2: Convert to fraction form
    5,429,032.34/8,143,541.61 = 1,385,520.23/x
  3. Step 3: Cross multiply
    5,429,032.34x = 8,143,541.61 × 1,385,520.23
  4. Step 4: Simplify right side
    5,429,032.34x = 11,283,041,644,501.77
  5. Step 5: Solve for x
    x = 11,283,041,644,501.77/5,429,032.34
  6. Step 6: Final answer
    x = 2,078,278.58

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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.