Home / 70,123,969.35-105,185,952.41-19,005,987.15

Finding the Fourth Proportional to 70,123,969.35, 105,185,952.41 and 19,005,987.15

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Solution

The fourth proportional to 70,123,969.35, 105,185,952.41 and 19,005,987.15 is: 28,508,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123,969.35 : 105,185,952.41 = 19,005,987.15 : x
  2. Step 2: Convert to fraction form
    70,123,969.35/105,185,952.41 = 19,005,987.15/x
  3. Step 3: Cross multiply
    70,123,969.35x = 105,185,952.41 × 19,005,987.15
  4. Step 4: Simplify right side
    70,123,969.35x = 1,999,162,859,769,941.50
  5. Step 5: Solve for x
    x = 1,999,162,859,769,941.50/70,123,969.35
  6. Step 6: Final answer
    x = 28,508,980.29

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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.