Home / 9,987,317.40-13,782,498-5,403,638.76

Finding the Fourth Proportional to 9,987,317.40, 13,782,498 and 5,403,638.76

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Solution

The fourth proportional to 9,987,317.40, 13,782,498 and 5,403,638.76 is: 7,457,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987,317.40 : 13,782,498 = 5,403,638.76 : x
  2. Step 2: Convert to fraction form
    9,987,317.40/13,782,498 = 5,403,638.76/x
  3. Step 3: Cross multiply
    9,987,317.40x = 13,782,498 × 5,403,638.76
  4. Step 4: Simplify right side
    9,987,317.40x = 74,475,640,402,422.48
  5. Step 5: Solve for x
    x = 74,475,640,402,422.48/9,987,317.40
  6. Step 6: Final answer
    x = 7,457,021.48

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1.5x scale

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.