Home / 30,942,746.48-42,656,645.04-21,746,848.88

Finding the Fourth Proportional to 30,942,746.48, 42,656,645.04 and 21,746,848.88

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Solution

The fourth proportional to 30,942,746.48, 42,656,645.04 and 21,746,848.88 is: 29,979,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942,746.48 : 42,656,645.04 = 21,746,848.88 : x
  2. Step 2: Convert to fraction form
    30,942,746.48/42,656,645.04 = 21,746,848.88/x
  3. Step 3: Cross multiply
    30,942,746.48x = 42,656,645.04 × 21,746,848.88
  4. Step 4: Simplify right side
    30,942,746.48x = 927,647,613,412,681.50
  5. Step 5: Solve for x
    x = 927,647,613,412,681.50/30,942,746.48
  6. Step 6: Final answer
    x = 29,979,485.31

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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.