Home / 21,006,018.40-31,509,027.60-5,049,666.40

Finding the Fourth Proportional to 21,006,018.40, 31,509,027.60 and 5,049,666.40

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Solution

The fourth proportional to 21,006,018.40, 31,509,027.60 and 5,049,666.40 is: 7,574,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,018.40 : 31,509,027.60 = 5,049,666.40 : x
  2. Step 2: Convert to fraction form
    21,006,018.40/31,509,027.60 = 5,049,666.40/x
  3. Step 3: Cross multiply
    21,006,018.40x = 31,509,027.60 × 5,049,666.40
  4. Step 4: Simplify right side
    21,006,018.40x = 159,110,077,968,392.66
  5. Step 5: Solve for x
    x = 159,110,077,968,392.66/21,006,018.40
  6. Step 6: Final answer
    x = 7,574,499.60

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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.