Home / 47,147,953.01-70,721,949.15-21,209,957.88

Finding the Fourth Proportional to 47,147,953.01, 70,721,949.15 and 21,209,957.88

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Solution

The fourth proportional to 47,147,953.01, 70,721,949.15 and 21,209,957.88 is: 31,814,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,147,953.01 : 70,721,949.15 = 21,209,957.88 : x
  2. Step 2: Convert to fraction form
    47,147,953.01/70,721,949.15 = 21,209,957.88/x
  3. Step 3: Cross multiply
    47,147,953.01x = 70,721,949.15 × 21,209,957.88
  4. Step 4: Simplify right side
    47,147,953.01x = 1,500,009,562,663,001.75
  5. Step 5: Solve for x
    x = 1,500,009,562,663,001.75/47,147,953.01
  6. Step 6: Final answer
    x = 31,814,945.66

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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.