Home / 70,776,145.40-105,951,641.70-42,007,472.60

Finding the Fourth Proportional to 70,776,145.40, 105,951,641.70 and 42,007,472.60

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Solution

The fourth proportional to 70,776,145.40, 105,951,641.70 and 42,007,472.60 is: 62,885,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776,145.40 : 105,951,641.70 = 42,007,472.60 : x
  2. Step 2: Convert to fraction form
    70,776,145.40/105,951,641.70 = 42,007,472.60/x
  3. Step 3: Cross multiply
    70,776,145.40x = 105,951,641.70 × 42,007,472.60
  4. Step 4: Simplify right side
    70,776,145.40x = 4,450,760,685,637,767.50
  5. Step 5: Solve for x
    x = 4,450,760,685,637,767.50/70,776,145.40
  6. Step 6: Final answer
    x = 62,885,039.31

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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.