Home / 31,041,542,625.65-42,845,299,128.74-20,217,586,166.31

Finding the Fourth Proportional to 31,041,542,625.65, 42,845,299,128.74 and 20,217,586,166.31

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Solution

The fourth proportional to 31,041,542,625.65, 42,845,299,128.74 and 20,217,586,166.31 is: 27,905,460,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041,542,625.65 : 42,845,299,128.74 = 20,217,586,166.31 : x
  2. Step 2: Convert to fraction form
    31,041,542,625.65/42,845,299,128.74 = 20,217,586,166.31/x
  3. Step 3: Cross multiply
    31,041,542,625.65x = 42,845,299,128.74 × 20,217,586,166.31
  4. Step 4: Simplify right side
    31,041,542,625.65x = 866,228,526,956,526,698,496
  5. Step 5: Solve for x
    x = 866,228,526,956,526,698,496/31,041,542,625.65
  6. Step 6: Final answer
    x = 27,905,460,028.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.