Home / 13,628,909.36-18,807,953.81-7,434,089.42

Finding the Fourth Proportional to 13,628,909.36, 18,807,953.81 and 7,434,089.42

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Solution

The fourth proportional to 13,628,909.36, 18,807,953.81 and 7,434,089.42 is: 10,259,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,909.36 : 18,807,953.81 = 7,434,089.42 : x
  2. Step 2: Convert to fraction form
    13,628,909.36/18,807,953.81 = 7,434,089.42/x
  3. Step 3: Cross multiply
    13,628,909.36x = 18,807,953.81 × 7,434,089.42
  4. Step 4: Simplify right side
    13,628,909.36x = 139,820,010,299,559.47
  5. Step 5: Solve for x
    x = 139,820,010,299,559.47/13,628,909.36
  6. Step 6: Final answer
    x = 10,259,075.51

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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.