Home / 128,011,547.64-191,939,563.52-50,195,226.36

Finding the Fourth Proportional to 128,011,547.64, 191,939,563.52 and 50,195,226.36

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Solution

The fourth proportional to 128,011,547.64, 191,939,563.52 and 50,195,226.36 is: 75,262,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,547.64 : 191,939,563.52 = 50,195,226.36 : x
  2. Step 2: Convert to fraction form
    128,011,547.64/191,939,563.52 = 50,195,226.36/x
  3. Step 3: Cross multiply
    128,011,547.64x = 191,939,563.52 × 50,195,226.36
  4. Step 4: Simplify right side
    128,011,547.64x = 9,634,449,838,325,998
  5. Step 5: Solve for x
    x = 9,634,449,838,325,998/128,011,547.64
  6. Step 6: Final answer
    x = 75,262,349.50

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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.