Home / 47,123,890.40-70,629,848.40-19,830,130.40

Finding the Fourth Proportional to 47,123,890.40, 70,629,848.40 and 19,830,130.40

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Solution

The fourth proportional to 47,123,890.40, 70,629,848.40 and 19,830,130.40 is: 29,721,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,123,890.40 : 70,629,848.40 = 19,830,130.40 : x
  2. Step 2: Convert to fraction form
    47,123,890.40/70,629,848.40 = 19,830,130.40/x
  3. Step 3: Cross multiply
    47,123,890.40x = 70,629,848.40 × 19,830,130.40
  4. Step 4: Simplify right side
    47,123,890.40x = 1,400,599,103,904,231.25
  5. Step 5: Solve for x
    x = 1,400,599,103,904,231.25/47,123,890.40
  6. Step 6: Final answer
    x = 29,721,635.71

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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.