Home / 21,130,902.70-31,710,558.21-7,484,000.02

Finding the Fourth Proportional to 21,130,902.70, 31,710,558.21 and 7,484,000.02

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Solution

The fourth proportional to 21,130,902.70, 31,710,558.21 and 7,484,000.02 is: 11,231,030.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130,902.70 : 31,710,558.21 = 7,484,000.02 : x
  2. Step 2: Convert to fraction form
    21,130,902.70/31,710,558.21 = 7,484,000.02/x
  3. Step 3: Cross multiply
    21,130,902.70x = 31,710,558.21 × 7,484,000.02
  4. Step 4: Simplify right side
    21,130,902.70x = 237,321,818,277,851.16
  5. Step 5: Solve for x
    x = 237,321,818,277,851.16/21,130,902.70
  6. Step 6: Final answer
    x = 11,231,030.76

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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.