Home / 100,037,163.12-138,048,320.10-55,385,125.26

Finding the Fourth Proportional to 100,037,163.12, 138,048,320.10 and 55,385,125.26

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Solution

The fourth proportional to 100,037,163.12, 138,048,320.10 and 55,385,125.26 is: 76,429,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037,163.12 : 138,048,320.10 = 55,385,125.26 : x
  2. Step 2: Convert to fraction form
    100,037,163.12/138,048,320.10 = 55,385,125.26/x
  3. Step 3: Cross multiply
    100,037,163.12x = 138,048,320.10 × 55,385,125.26
  4. Step 4: Simplify right side
    100,037,163.12x = 7,645,823,500,671,075
  5. Step 5: Solve for x
    x = 7,645,823,500,671,075/100,037,163.12
  6. Step 6: Final answer
    x = 76,429,831.30

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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.