Home / 70,562,237.31-105,824,460.28-19,432,101.87

Finding the Fourth Proportional to 70,562,237.31, 105,824,460.28 and 19,432,101.87

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Solution

The fourth proportional to 70,562,237.31, 105,824,460.28 and 19,432,101.87 is: 29,142,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,562,237.31 : 105,824,460.28 = 19,432,101.87 : x
  2. Step 2: Convert to fraction form
    70,562,237.31/105,824,460.28 = 19,432,101.87/x
  3. Step 3: Cross multiply
    70,562,237.31x = 105,824,460.28 × 19,432,101.87
  4. Step 4: Simplify right side
    70,562,237.31x = 2,056,391,692,450,148.75
  5. Step 5: Solve for x
    x = 2,056,391,692,450,148.75/70,562,237.31
  6. Step 6: Final answer
    x = 29,142,949.13

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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.