Home / 69,130,421.28-103,671,618.48-38,471,787

Finding the Fourth Proportional to 69,130,421.28, 103,671,618.48 and 38,471,787

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Solution

The fourth proportional to 69,130,421.28, 103,671,618.48 and 38,471,787 is: 57,694,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,130,421.28 : 103,671,618.48 = 38,471,787 : x
  2. Step 2: Convert to fraction form
    69,130,421.28/103,671,618.48 = 38,471,787/x
  3. Step 3: Cross multiply
    69,130,421.28x = 103,671,618.48 × 38,471,787
  4. Step 4: Simplify right side
    69,130,421.28x = 3,988,432,424,107,824
  5. Step 5: Solve for x
    x = 3,988,432,424,107,824/69,130,421.28
  6. Step 6: Final answer
    x = 57,694,316.77

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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.