Home / 28,191,633,142.28-42,306,079,673.48-13,273,065,130.36

Finding the Fourth Proportional to 28,191,633,142.28, 42,306,079,673.48 and 13,273,065,130.36

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Solution

The fourth proportional to 28,191,633,142.28, 42,306,079,673.48 and 13,273,065,130.36 is: 19,918,368,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,633,142.28 : 42,306,079,673.48 = 13,273,065,130.36 : x
  2. Step 2: Convert to fraction form
    28,191,633,142.28/42,306,079,673.48 = 13,273,065,130.36/x
  3. Step 3: Cross multiply
    28,191,633,142.28x = 42,306,079,673.48 × 13,273,065,130.36
  4. Step 4: Simplify right side
    28,191,633,142.28x = 561,531,350,916,317,577,216
  5. Step 5: Solve for x
    x = 561,531,350,916,317,577,216/28,191,633,142.28
  6. Step 6: Final answer
    x = 19,918,368,974.31

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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.