Home / 9,989,567.50-13,785,602.68-5,405,889

Finding the Fourth Proportional to 9,989,567.50, 13,785,602.68 and 5,405,889

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Solution

The fourth proportional to 9,989,567.50, 13,785,602.68 and 5,405,889 is: 7,460,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,567.50 : 13,785,602.68 = 5,405,889 : x
  2. Step 2: Convert to fraction form
    9,989,567.50/13,785,602.68 = 5,405,889/x
  3. Step 3: Cross multiply
    9,989,567.50x = 13,785,602.68 × 5,405,889
  4. Step 4: Simplify right side
    9,989,567.50x = 74,523,437,886,182.52
  5. Step 5: Solve for x
    x = 74,523,437,886,182.52/9,989,567.50
  6. Step 6: Final answer
    x = 7,460,126.57

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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.