Home / 301,128,141.28-451,713,801.48-126,075,018.80

Finding the Fourth Proportional to 301,128,141.28, 451,713,801.48 and 126,075,018.80

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Solution

The fourth proportional to 301,128,141.28, 451,713,801.48 and 126,075,018.80 is: 189,121,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,128,141.28 : 451,713,801.48 = 126,075,018.80 : x
  2. Step 2: Convert to fraction form
    301,128,141.28/451,713,801.48 = 126,075,018.80/x
  3. Step 3: Cross multiply
    301,128,141.28x = 451,713,801.48 × 126,075,018.80
  4. Step 4: Simplify right side
    301,128,141.28x = 56,949,826,013,810,472
  5. Step 5: Solve for x
    x = 56,949,826,013,810,472/301,128,141.28
  6. Step 6: Final answer
    x = 189,121,567.22

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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.