Home / 31,345,747.20-47,018,620.80-8,316,637.20

Finding the Fourth Proportional to 31,345,747.20, 47,018,620.80 and 8,316,637.20

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Solution

The fourth proportional to 31,345,747.20, 47,018,620.80 and 8,316,637.20 is: 12,474,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345,747.20 : 47,018,620.80 = 8,316,637.20 : x
  2. Step 2: Convert to fraction form
    31,345,747.20/47,018,620.80 = 8,316,637.20/x
  3. Step 3: Cross multiply
    31,345,747.20x = 47,018,620.80 × 8,316,637.20
  4. Step 4: Simplify right side
    31,345,747.20x = 391,036,810,837,973.75
  5. Step 5: Solve for x
    x = 391,036,810,837,973.75/31,345,747.20
  6. Step 6: Final answer
    x = 12,474,955.80

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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.